diff --git a/.travis.yml b/.travis.yml
index 94eee3e..0496fc9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 ---
 language: node_js
 node_js:
-  - "lts/*"
+  - "12"
 
 sudo: false
 dist: xenial
diff --git a/README.md b/README.md
index 73fd7af..682df8b 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,9 @@ Aragon CLI and Truffle need to be installed on your sytem as well:
     npm install -g @aragon/cli
     npm install -g truffle
 
+_Note: `@aragon/cli` currently fails to install on node.js 14. Please use
+node.js 12 until the issue has been resolved upstream._
+
 ### Local development chain
 
 For local development it is recommended to use
diff --git a/lib/addresses/KreditsKit.json b/lib/addresses/KreditsKit.json
index 6cedfdd..50044e9 100644
--- a/lib/addresses/KreditsKit.json
+++ b/lib/addresses/KreditsKit.json
@@ -1,4 +1,3 @@
 {
-  "4": "0x76e069b47b79442657eaf0555a32c6b16fa1b8b4",
-  "69041181": "0x6Ad8CDF71C3E2AaD2712964097b475184a0dfDeF"
+  "4": "0x76e069b47b79442657eaf0555a32c6b16fa1b8b4"
 }
\ No newline at end of file
diff --git a/lib/addresses/dao.json b/lib/addresses/dao.json
index ddb62d3..e93f248 100644
--- a/lib/addresses/dao.json
+++ b/lib/addresses/dao.json
@@ -1,4 +1,3 @@
 {
-  "4": "0xc34edf7d11b7f8433d597f0bb0697acdff55ef14",
-  "69041181": "0x356685A0d9d66d6e5dA80f50EC206Af8009C8b6F"
+  "4": "0xc34edf7d11b7f8433d597f0bb0697acdff55ef14"
 }
\ No newline at end of file
diff --git a/lib/contracts/acl.js b/lib/contracts/acl.js
index d290b0b..254e7a2 100644
--- a/lib/contracts/acl.js
+++ b/lib/contracts/acl.js
@@ -5,7 +5,7 @@ class Acl extends Base {
   hasPermission (fromAddress, contractAddress, roleID, params = null) {
     let roleHash = EthersUtils.keccak256(EthersUtils.toUtf8Bytes(roleID));
 
-    return this.functions.hasPermission(
+    return this.hasPermission(
       fromAddress,
       contractAddress,
       roleHash,
diff --git a/lib/contracts/base.js b/lib/contracts/base.js
index 9cbcb7a..3a1e846 100644
--- a/lib/contracts/base.js
+++ b/lib/contracts/base.js
@@ -1,10 +1,13 @@
+const deprecate = require('../utils/deprecate');
+
 class Base {
   constructor (contract) {
     this.contract = contract;
   }
 
   get functions () {
-    return this.contract.functions;
+    deprecate('The property `functions` is deprecated. contract functions are now directly defined on the ethers contract object. https://github.com/ethers-io/ethers.js/issues/920#issuecomment-650836642');
+    return this.contract;
   }
 
   get address () {
diff --git a/lib/contracts/contribution.js b/lib/contracts/contribution.js
index 2856949..0f2bbb7 100644
--- a/lib/contracts/contribution.js
+++ b/lib/contracts/contribution.js
@@ -4,33 +4,33 @@ const deprecate = require('../utils/deprecate');
 
 class Contribution extends Record {
   get count () {
-    return this.functions.contributionsCount();
+    return this.contract.contributionsCount();
   }
 
   getById (id) {
-    return this.functions.getContribution(id)
+    return this.contract.getContribution(id)
       .then(data => {
         return this.ipfs.catAndMerge(data, ContributionSerializer.deserialize);
       });
   }
 
   getData (id) {
-    return this.functions.getContribution(id);
+    return this.contract.getContribution(id);
   }
 
   getByContributorId (contributorId) {
-    return this.functions.getContributorAddressById(contributorId)
+    return this.contract.getContributorAddressById(contributorId)
       .then(address => this.getByContributorAddress(address));
   }
 
   getByContributorAddress (address) {
-    return this.functions.balanceOf(address)
+    return this.contract.balanceOf(address)
       .then(async (balance) => {
         const count = balance.toNumber();
         const contributions = [];
 
         for (let index = 0; index < count; index++) {
-          const id = await this.functions.tokenOfOwnerByIndex(address, index);
+          const id = await this.contract.tokenOfOwnerByIndex(address, index);
           const contribution = await this.getById(id);
           contributions.push(contribution);
         }
@@ -58,7 +58,7 @@ class Contribution extends Record {
           ipfsHashAttr.hashSize,
         ];
 
-        return this.functions.add(...contribution, callOptions);
+        return this.contract.add(...contribution, callOptions);
       });
   }
 
diff --git a/lib/contracts/contributor.js b/lib/contracts/contributor.js
index 6a1c1ed..5edbfa9 100644
--- a/lib/contracts/contributor.js
+++ b/lib/contracts/contributor.js
@@ -4,19 +4,20 @@ const formatKredits = require('../utils/format-kredits');
 
 class Contributor extends Record {
   get count () {
-    return this.functions.contributorsCount();
+    return this.contract.contributorsCount();
   }
 
   getById (id) {
-    return this.functions.getContributorById(id)
-      .then(data => {
+    return this.contract.getContributorById(id)
+      .then(contractData => {
+        let data = {...contractData};
         data.balanceInt = formatKredits(data.balance);
         return this.ipfs.catAndMerge(data, ContributorSerializer.deserialize);
       });
   }
 
   getData (id) {
-    return this.functions.getContributorById(id);
+    return this.contract.getContributorById(id);
   }
 
   filterByAccount (search) {
@@ -61,7 +62,7 @@ class Contributor extends Record {
           ipfsHashAttr.hashSize,
         ];
 
-        return this.functions.addContributor(...contributor, callOptions);
+        return this.contract.addContributor(...contributor, callOptions);
       });
   }
 
@@ -78,7 +79,7 @@ class Contributor extends Record {
       return this.ipfs
         .add(jsonStr)
         .then(ipfsHashAttr => {
-          return this.functions.updateContributorProfileHash(
+          return this.contract.updateContributorProfileHash(
             contributorId,
             ipfsHashAttr.hashDigest,
             ipfsHashAttr.hashFunction,
diff --git a/lib/contracts/kernel.js b/lib/contracts/kernel.js
index 630736a..90d6e0b 100644
--- a/lib/contracts/kernel.js
+++ b/lib/contracts/kernel.js
@@ -11,9 +11,9 @@ class Kernel extends Base {
 
   getApp (appName) {
     if (appName === 'Acl') {
-      return this.functions.acl();
+      return this.contract.acl();
     }
-    return this.functions.getApp(KERNEL_APP_ADDR_NAMESPACE, this.appNamehash(appName));
+    return this.contract.getApp(KERNEL_APP_ADDR_NAMESPACE, this.appNamehash(appName));
   }
 
   appNamehash (appName) {
diff --git a/lib/contracts/proposal.js b/lib/contracts/proposal.js
index e36d3ef..307ef58 100644
--- a/lib/contracts/proposal.js
+++ b/lib/contracts/proposal.js
@@ -4,11 +4,11 @@ const deprecate = require('../utils/deprecate');
 
 class Proposal extends Record {
   get count () {
-    return this.functions.proposalsCount();
+    return this.contract.proposalsCount();
   }
 
   getById (id) {
-    return this.functions.getProposal(id)
+    return this.contract.getProposal(id)
       .then(data => {
         return this.ipfs.catAndMerge(data, ContributionSerializer.deserialize);
       });
@@ -33,7 +33,7 @@ class Proposal extends Record {
           ipfsHashAttr.hashSize,
         ];
 
-        return this.functions.addProposal(...proposal, callOptions);
+        return this.contract.addProposal(...proposal, callOptions);
       });
   }
 
diff --git a/lib/kreditskit.js b/lib/kreditskit.js
index 1087de6..81c7238 100644
--- a/lib/kreditskit.js
+++ b/lib/kreditskit.js
@@ -30,11 +30,11 @@ class KreditsKit {
   appIdFor (contractName) {
     // see appIds in KreditsKit.sol for more details
     const knownContracts = ['Contribution', 'Contributor', 'Proposal', 'Reimbursement', 'Token'];
-    return this.contract.functions.appIds(knownContracts.indexOf(contractName));
+    return this.contract.appIds(knownContracts.indexOf(contractName));
   }
 
   newDAO (options = {}) {
-    return this.contract.functions.newInstance(options).then(transaction => {
+    return this.contract.newInstance(options).then(transaction => {
       return transaction.wait().then(result => {
         const deployEvent = result.events.find(e => e.event === 'DeployInstance');
         return {
diff --git a/lib/utils/ipfs.js b/lib/utils/ipfs.js
index 18b17d4..84a4692 100644
--- a/lib/utils/ipfs.js
+++ b/lib/utils/ipfs.js
@@ -11,7 +11,8 @@ class IPFS {
     this._ipfsAPI = ipfsClient(config);
   }
 
-  catAndMerge (data, deserialize) {
+  catAndMerge (contractData, deserialize) {
+    let data = {...contractData}; // data from ethers.js is not extensible. this copy the attributes in a new object
     // if no hash details are found simply return the data; nothing to merge
     if (!data.hashSize || data.hashSize === 0) {
       return data;
diff --git a/package-lock.json b/package-lock.json
index afc2cf5..55076ce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "kredits-contracts",
-  "version": "5.5.0",
+  "version": "6.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -43,6 +43,21 @@
         "@babel/highlight": "^7.8.3"
       }
     },
+    "@babel/helper-module-imports": {
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-module-imports/-/helper-module-imports-7.10.4.tgz",
+      "integrity": "sha512-nEQJHqYavI217oD9+s5MUBzk6x1IlvoS9WTPfgG43CbMEeStE0v+r+TucWdx8KFGowPGvyOkDT9+7DHedIDnVw==",
+      "dev": true,
+      "requires": {
+        "@babel/types": "^7.10.4"
+      }
+    },
+    "@babel/helper-plugin-utils": {
+      "version": "7.10.4",
+      "resolved": "https://registry.npmjs.org/@babel/helper-plugin-utils/-/helper-plugin-utils-7.10.4.tgz",
+      "integrity": "sha512-O4KCvQA6lLiMU9l2eawBPMf1xPP8xPfB3iEQw150hOVTqj/rfXz0ThTb4HEzqQfs2Bmo5Ay8BzxfzVtBrr9dVg==",
+      "dev": true
+    },
     "@babel/helper-validator-identifier": {
       "version": "7.9.5",
       "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.9.5.tgz",
@@ -97,6 +112,469 @@
         }
       }
     },
+    "@babel/plugin-transform-runtime": {
+      "version": "7.10.5",
+      "resolved": "https://registry.npmjs.org/@babel/plugin-transform-runtime/-/plugin-transform-runtime-7.10.5.tgz",
+      "integrity": "sha512-tV4V/FjElJ9lQtyjr5xD2IFFbgY46r7EeVu5a8CpEKT5laheHKSlFeHjpkPppW3PqzGLAuv5k2qZX5LgVZIX5w==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-module-imports": "^7.10.4",
+        "@babel/helper-plugin-utils": "^7.10.4",
+        "resolve": "^1.8.1",
+        "semver": "^5.5.1"
+      },
+      "dependencies": {
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/runtime": {
+      "version": "7.10.5",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.10.5.tgz",
+      "integrity": "sha512-otddXKhdNn7d0ptoFRHtMLa8LqDxLYwTjB4nYgM1yy5N6gU/MUf8zqyyLltCH3yAVitBzmwK4us+DD0l/MauAg==",
+      "dev": true,
+      "requires": {
+        "regenerator-runtime": "^0.13.4"
+      },
+      "dependencies": {
+        "regenerator-runtime": {
+          "version": "0.13.5",
+          "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.5.tgz",
+          "integrity": "sha512-ZS5w8CpKFinUzOwW3c83oPeVXoNsrLsaCoLtJvAClH135j/R77RuymhiSErhm2lKcwSCIpmvIWSbDkIfAqKQlA==",
+          "dev": true
+        }
+      }
+    },
+    "@babel/types": {
+      "version": "7.10.5",
+      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.10.5.tgz",
+      "integrity": "sha512-ixV66KWfCI6GKoA/2H9v6bQdbfXEwwpOdQ8cRvb4F+eyvhlaHxWFMQB4+3d9QFJXZsiiiqVrewNV0DFEQpyT4Q==",
+      "dev": true,
+      "requires": {
+        "@babel/helper-validator-identifier": "^7.10.4",
+        "lodash": "^4.17.19",
+        "to-fast-properties": "^2.0.0"
+      },
+      "dependencies": {
+        "@babel/helper-validator-identifier": {
+          "version": "7.10.4",
+          "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.10.4.tgz",
+          "integrity": "sha512-3U9y+43hz7ZM+rzG24Qe2mufW5KhvFg/NhnNph+i9mgCtdTCtMJuI1TMkrIUiK7Ix4PYlRF9I5dhqaLYA/ADXw==",
+          "dev": true
+        },
+        "lodash": {
+          "version": "4.17.19",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
+          "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
+          "dev": true
+        },
+        "to-fast-properties": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz",
+          "integrity": "sha1-3F5pjL0HkmW8c+A3doGk5Og/YW4=",
+          "dev": true
+        }
+      }
+    },
+    "@ethersproject/abi": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/abi/-/abi-5.0.1.tgz",
+      "integrity": "sha512-9fqSa3jEYV4nN8tijW+jz4UnT/Ma9/b8y4+nHlsvuWqr32E2kYsT9SCIVpk/51iM6NOud7xsA6UxCox9zBeHKg==",
+      "requires": {
+        "@ethersproject/address": "^5.0.0",
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/constants": "^5.0.0",
+        "@ethersproject/hash": "^5.0.0",
+        "@ethersproject/keccak256": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0",
+        "@ethersproject/strings": "^5.0.0"
+      }
+    },
+    "@ethersproject/abstract-provider": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-provider/-/abstract-provider-5.0.1.tgz",
+      "integrity": "sha512-/KOw65ayviYPtKLqFE1qozeIJJlfI1wE/tNA+iKUPUai6bU6vg2tbfLFGarRTCQe3HoWV1t7xSsD/z9T9xg74g==",
+      "requires": {
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/networks": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0",
+        "@ethersproject/transactions": "^5.0.0",
+        "@ethersproject/web": "^5.0.0"
+      }
+    },
+    "@ethersproject/abstract-signer": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/abstract-signer/-/abstract-signer-5.0.1.tgz",
+      "integrity": "sha512-Rp8DP+cLcSNFkd1YhwPSBcgEWLRipNakitwIwHngAmhbo4zdiWgALD/OLqdQ7SKF75CufF1W4BCuXcQgiWaRow==",
+      "requires": {
+        "@ethersproject/abstract-provider": "^5.0.0",
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0"
+      }
+    },
+    "@ethersproject/address": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/address/-/address-5.0.1.tgz",
+      "integrity": "sha512-kfQtXpBP2pI2TfoRRAYv8grHGiYw8U0c1KbMsC58/W33TIBy7gFSf/oAzOd94lNzdIUenKU0OuSzrHQfVcDDDA==",
+      "requires": {
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/keccak256": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/rlp": "^5.0.0",
+        "bn.js": "^4.4.0"
+      }
+    },
+    "@ethersproject/base64": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/base64/-/base64-5.0.1.tgz",
+      "integrity": "sha512-WZDa+TYl6BQfUm9EQIDDfJFL0GiuYXNZPIWoiZx3uds7P1XMsvcW3k71AyjYUxIkU5AKW7awwPbzCbBeP1uXsA==",
+      "requires": {
+        "@ethersproject/bytes": "^5.0.0"
+      }
+    },
+    "@ethersproject/basex": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/basex/-/basex-5.0.1.tgz",
+      "integrity": "sha512-ssL2+p/A5bZgkZkiWy0iQDVz2mVJxZfzpf7dpw8t0sKF9VpoM3ZiMthRapH/QBhd4Rr6TNbr619pFLAGmMi9Ug==",
+      "requires": {
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0"
+      }
+    },
+    "@ethersproject/bignumber": {
+      "version": "5.0.4",
+      "resolved": "https://registry.npmjs.org/@ethersproject/bignumber/-/bignumber-5.0.4.tgz",
+      "integrity": "sha512-fgfwehdxS4BPRvq2B+joKqchW2E2cV3DE+O/DhG7jH3m2blM1VIzjtIOtJNjNI/YCgkygGjT1DaZS1j29RAwHw==",
+      "requires": {
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0",
+        "bn.js": "^4.4.0"
+      }
+    },
+    "@ethersproject/bytes": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/@ethersproject/bytes/-/bytes-5.0.2.tgz",
+      "integrity": "sha512-QLE5zCreNv7KGh0AsXdvmdOYcWSJbnR654M+dLyY90g3D0ehVDSf+wxzG/GmWa79ESsqo/cWC1kJA1Vrcq7GFw==",
+      "requires": {
+        "@ethersproject/logger": "^5.0.0"
+      }
+    },
+    "@ethersproject/constants": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/constants/-/constants-5.0.1.tgz",
+      "integrity": "sha512-Xec07hFCPN4wfC3WDiRay7KipkApl2msiKTrBHCuAwNMOM8M92+mlQp8tgfEL51DPwCZkmdk1f02kArc6caVSw==",
+      "requires": {
+        "@ethersproject/bignumber": "^5.0.0"
+      }
+    },
+    "@ethersproject/contracts": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/contracts/-/contracts-5.0.1.tgz",
+      "integrity": "sha512-1uPajmkvw3Oy/dxs5TKUsGaXzQ3s5qiXKSVpw9ZrhGG6fMRO3gNyUA+uSWk9IXK0ulj5P95F7vW8HmYOkzep/Q==",
+      "requires": {
+        "@ethersproject/abi": "^5.0.0",
+        "@ethersproject/abstract-provider": "^5.0.0",
+        "@ethersproject/abstract-signer": "^5.0.0",
+        "@ethersproject/address": "^5.0.0",
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/constants": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0"
+      }
+    },
+    "@ethersproject/hash": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/hash/-/hash-5.0.1.tgz",
+      "integrity": "sha512-1ByUXYvkszrSSks07xctBtZfpFnIVmftxWlAAnguxh6Q65vKECd/EPi5uI5xVOvnrYMH9Vb8MK1SofPX/6fArQ==",
+      "requires": {
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/keccak256": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/strings": "^5.0.0"
+      }
+    },
+    "@ethersproject/hdnode": {
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/@ethersproject/hdnode/-/hdnode-5.0.1.tgz",
+      "integrity": "sha512-L2OZP4SKKxNtHUdwfK8cND09kHRH62ncxXW33WAJU9shKo8Sbz31HVqSdov84bMAGm8QfEKZbfbAJV/7DM6DjQ==",
+      "requires": {
+        "@ethersproject/abstract-signer": "^5.0.0",
+        "@ethersproject/basex": "^5.0.0",
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
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       }
     },
-    "eth-ens-namehash": {
-      "version": "2.0.8",
-      "resolved": "https://registry.npmjs.org/eth-ens-namehash/-/eth-ens-namehash-2.0.8.tgz",
-      "integrity": "sha1-IprEbsqG1S4MmR58sq74P/D2i88=",
-      "dev": true,
-      "requires": {
-        "idna-uts46-hx": "^2.3.1",
-        "js-sha3": "^0.5.7"
-      }
-    },
     "eth-json-rpc-infura": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/eth-json-rpc-infura/-/eth-json-rpc-infura-3.2.1.tgz",
@@ -3322,31 +3872,39 @@
       }
     },
     "ethers": {
-      "version": "4.0.47",
-      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.47.tgz",
-      "integrity": "sha512-hssRYhngV4hiDNeZmVU/k5/E8xmLG8UpcNUzg6mb7lqhgpFPH/t7nuv20RjRrEf0gblzvi2XwR5Te+V3ZFc9pQ==",
+      "version": "5.0.5",
+      "resolved": "https://registry.npmjs.org/ethers/-/ethers-5.0.5.tgz",
+      "integrity": "sha512-hkVI7fi16ADWTctYMEfamU39hoR+JpkdEI7LH8PC7Bhl0Dp8y8dqFJ948pSEuuPJI5NR/L4+V6y2Alvyu+zROw==",
       "requires": {
-        "aes-js": "3.0.0",
-        "bn.js": "^4.4.0",
-        "elliptic": "6.5.2",
-        "hash.js": "1.1.3",
-        "js-sha3": "0.5.7",
-        "scrypt-js": "2.0.4",
-        "setimmediate": "1.0.4",
-        "uuid": "2.0.1",
-        "xmlhttprequest": "1.8.0"
-      },
-      "dependencies": {
-        "aes-js": {
-          "version": "3.0.0",
-          "resolved": "https://registry.npmjs.org/aes-js/-/aes-js-3.0.0.tgz",
-          "integrity": "sha1-4h3xCtbCBTKVvLuNq0Cwnb6ofk0="
-        },
-        "uuid": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-2.0.1.tgz",
-          "integrity": "sha1-wqMN7bPlNdcsz4LjQ5QaULqFM6w="
-        }
+        "@ethersproject/abi": "^5.0.0",
+        "@ethersproject/abstract-provider": "^5.0.0",
+        "@ethersproject/abstract-signer": "^5.0.0",
+        "@ethersproject/address": "^5.0.0",
+        "@ethersproject/base64": "^5.0.0",
+        "@ethersproject/bignumber": "^5.0.0",
+        "@ethersproject/bytes": "^5.0.0",
+        "@ethersproject/constants": "^5.0.0",
+        "@ethersproject/contracts": "^5.0.0",
+        "@ethersproject/hash": "^5.0.0",
+        "@ethersproject/hdnode": "^5.0.0",
+        "@ethersproject/json-wallets": "^5.0.0",
+        "@ethersproject/keccak256": "^5.0.0",
+        "@ethersproject/logger": "^5.0.0",
+        "@ethersproject/networks": "^5.0.0",
+        "@ethersproject/pbkdf2": "^5.0.0",
+        "@ethersproject/properties": "^5.0.0",
+        "@ethersproject/providers": "^5.0.0",
+        "@ethersproject/random": "^5.0.0",
+        "@ethersproject/rlp": "^5.0.0",
+        "@ethersproject/sha2": "^5.0.0",
+        "@ethersproject/signing-key": "^5.0.0",
+        "@ethersproject/solidity": "^5.0.0",
+        "@ethersproject/strings": "^5.0.0",
+        "@ethersproject/transactions": "^5.0.0",
+        "@ethersproject/units": "^5.0.0",
+        "@ethersproject/wallet": "^5.0.0",
+        "@ethersproject/web": "^5.0.0",
+        "@ethersproject/wordlists": "^5.0.0"
       }
     },
     "ethjs-unit": {
@@ -3540,6 +4098,12 @@
       "integrity": "sha1-PYpcZog6FqMMqGQ+hR8Zuqd5eRc=",
       "dev": true
     },
+    "fast-safe-stringify": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.0.7.tgz",
+      "integrity": "sha512-Utm6CdzT+6xsDk2m8S6uL8VHxNwI6Jub+e9NYTcAms28T84pTa25GJQV9j0CY0N1rM8hK4x6grpF2BQf+2qwVA==",
+      "dev": true
+    },
     "fd-slicer": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz",
@@ -5156,6 +5720,12 @@
       "integrity": "sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=",
       "dev": true
     },
+    "lodash.flatmap": {
+      "version": "4.5.0",
+      "resolved": "https://registry.npmjs.org/lodash.flatmap/-/lodash.flatmap-4.5.0.tgz",
+      "integrity": "sha1-74y/QI9uSCaGYzRTBcaswLd4cC4=",
+      "dev": true
+    },
     "loose-envify": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/loose-envify/-/loose-envify-1.4.0.tgz",
@@ -6713,9 +7283,9 @@
       }
     },
     "scrypt-js": {
-      "version": "2.0.4",
-      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
-      "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+      "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
     },
     "scrypt.js": {
       "version": "0.3.0",
@@ -6885,7 +7455,8 @@
     "setimmediate": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.4.tgz",
-      "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48="
+      "integrity": "sha1-IOgd5iLUoCWIzgyNqJc8vPHTE48=",
+      "dev": true
     },
     "setprototypeof": {
       "version": "1.1.1",
@@ -8716,8 +9287,10 @@
         "backoff": "^2.5.0",
         "clone": "^2.0.0",
         "cross-fetch": "^2.1.0",
-        "eth-block-tracker": "^3.0.0",
+        "eth-block-tracker": "^4.2.0",
+        "eth-json-rpc-filters": "^4.0.2",
         "eth-json-rpc-infura": "^3.1.0",
+        "eth-json-rpc-middleware": "^4.1.1",
         "eth-sig-util": "^1.4.2",
         "ethereumjs-block": "^1.2.2",
         "ethereumjs-tx": "^1.2.0",
@@ -8734,6 +9307,42 @@
         "xtend": "^4.0.1"
       },
       "dependencies": {
+        "eth-block-tracker": {
+          "version": "4.4.3",
+          "resolved": "https://registry.npmjs.org/eth-block-tracker/-/eth-block-tracker-4.4.3.tgz",
+          "integrity": "sha512-A8tG4Z4iNg4mw5tP1Vung9N9IjgMNqpiMoJ/FouSFwNCGHv2X0mmOYwtQOJzki6XN7r7Tyo01S29p7b224I4jw==",
+          "dev": true,
+          "requires": {
+            "@babel/plugin-transform-runtime": "^7.5.5",
+            "@babel/runtime": "^7.5.5",
+            "eth-query": "^2.1.0",
+            "json-rpc-random-id": "^1.0.1",
+            "pify": "^3.0.0",
+            "safe-event-emitter": "^1.0.1"
+          }
+        },
+        "eth-json-rpc-middleware": {
+          "version": "4.4.1",
+          "resolved": "https://registry.npmjs.org/eth-json-rpc-middleware/-/eth-json-rpc-middleware-4.4.1.tgz",
+          "integrity": "sha512-yoSuRgEYYGFdVeZg3poWOwAlRI+MoBIltmOB86MtpoZjvLbou9EB/qWMOWSmH2ryCWLW97VYY6NWsmWm3OAA7A==",
+          "dev": true,
+          "requires": {
+            "btoa": "^1.2.1",
+            "clone": "^2.1.1",
+            "eth-json-rpc-errors": "^1.0.1",
+            "eth-query": "^2.1.2",
+            "eth-sig-util": "^1.4.2",
+            "ethereumjs-block": "^1.6.0",
+            "ethereumjs-tx": "^1.3.7",
+            "ethereumjs-util": "^5.1.2",
+            "ethereumjs-vm": "^2.6.0",
+            "fetch-ponyfill": "^4.0.0",
+            "json-rpc-engine": "^5.1.3",
+            "json-stable-stringify": "^1.0.1",
+            "pify": "^3.0.0",
+            "safe-event-emitter": "^1.0.1"
+          }
+        },
         "ethereumjs-util": {
           "version": "5.2.0",
           "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-5.2.0.tgz",
@@ -8749,6 +9358,35 @@
             "secp256k1": "^3.0.1"
           }
         },
+        "json-rpc-engine": {
+          "version": "5.1.8",
+          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.1.8.tgz",
+          "integrity": "sha512-vTBSDEPJV1fPAsbm2g5sEuPjsgLdiab2f1CTn2PyRr8nxggUpA996PDlNQDsM0gnrA99F8KIBLq2nIKrOFl1Mg==",
+          "dev": true,
+          "requires": {
+            "async": "^2.0.1",
+            "eth-json-rpc-errors": "^2.0.1",
+            "promise-to-callback": "^1.0.0",
+            "safe-event-emitter": "^1.0.1"
+          },
+          "dependencies": {
+            "eth-json-rpc-errors": {
+              "version": "2.0.2",
+              "resolved": "https://registry.npmjs.org/eth-json-rpc-errors/-/eth-json-rpc-errors-2.0.2.tgz",
+              "integrity": "sha512-uBCRM2w2ewusRHGxN8JhcuOb2RN3ueAOYH/0BhqdFmQkZx5lj5+fLKTz0mIVOzd4FG5/kUksCzCD7eTEim6gaA==",
+              "dev": true,
+              "requires": {
+                "fast-safe-stringify": "^2.0.6"
+              }
+            }
+          }
+        },
+        "pify": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
+          "integrity": "sha1-5aSs0sEB/fPZpNB/DbxNtJ3SgXY=",
+          "dev": true
+        },
         "readable-stream": {
           "version": "2.3.7",
           "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
@@ -9042,7 +9680,8 @@
     "xmlhttprequest": {
       "version": "1.8.0",
       "resolved": "https://registry.npmjs.org/xmlhttprequest/-/xmlhttprequest-1.8.0.tgz",
-      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw="
+      "integrity": "sha1-Z/4HXFwk/vOfnWX197f+dRcZaPw=",
+      "dev": true
     },
     "xtend": {
       "version": "4.0.1",
diff --git a/package.json b/package.json
index 61373c7..2a38018 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "kredits-contracts",
-  "version": "5.5.0",
+  "version": "6.0.0",
   "description": "Ethereum contracts and npm wrapper for Kredits",
   "main": "./lib/kredits.js",
   "directories": {
@@ -60,7 +60,7 @@
     "yargs": "^15.0.0"
   },
   "dependencies": {
-    "ethers": "^4.0.47",
+    "ethers": "^5.0.2",
     "ipfs-http-client": "^41.0.1",
     "@kosmos/schemas": "^3.0.0",
     "node-fetch": "^2.6.0",
diff --git a/scripts/add-contribution.js b/scripts/add-contribution.js
index 78b1b03..9594f37 100644
--- a/scripts/add-contribution.js
+++ b/scripts/add-contribution.js
@@ -19,10 +19,10 @@ module.exports = async function(callback) {
   let contributorAccount;
   if (contributor.length < 5) {
     contributorId = contributor;
-    contributorAccount = await kredits.Contributor.functions.getContributorAddressById(contributor);
+    contributorAccount = await kredits.Contributor.contract.getContributorAddressById(contributor);
   } else {
     contributorAccount = contributor;
-    contributorId = await kredits.Contributor.functions.getContributorIdByAddress(contributor);
+    contributorId = await kredits.Contributor.contract.getContributorIdByAddress(contributor);
   }
 
   console.log(`Creating a contribution for contributor account ${contributorAccount} ID: ${contributorId}`);
@@ -45,7 +45,7 @@ module.exports = async function(callback) {
   console.log("\nAdding contribution:");
   console.log(contributionAttributes);
 
-  kredits.Contribution.addContribution(contributionAttributes, { gasLimit: 300000 })
+  kredits.Contribution.add(contributionAttributes, { gasLimit: 300000 })
     .then(result => {
       console.log("\n\nResult:");
       console.log(result);
diff --git a/scripts/add-proposal.js b/scripts/add-proposal.js
index c99fecf..e4b9bc0 100644
--- a/scripts/add-proposal.js
+++ b/scripts/add-proposal.js
@@ -19,10 +19,10 @@ module.exports = async function(callback) {
   let contributorAccount;
   if (contributor.length < 5) {
     contributorId = contributor;
-    contributorAccount = await kredits.Contributor.functions.getContributorAddressById(contributor);
+    contributorAccount = await kredits.Contributor.contract.getContributorAddressById(contributor);
   } else {
     contributorAccount = contributor;
-    contributorId = await kredits.Contributor.functions.getContributorIdByAddress(contributor);
+    contributorId = await kredits.Contributor.contract.getContributorIdByAddress(contributor);
   }
   console.log(`Creating a proposal for contributor ID #${contributorId} account: ${contributorAccount}`);
 
diff --git a/scripts/claim-contributions.js b/scripts/claim-contributions.js
index 24598fb..2b644eb 100644
--- a/scripts/claim-contributions.js
+++ b/scripts/claim-contributions.js
@@ -31,7 +31,7 @@ module.exports = async function(callback) {
 
       if (c.contributorId === recipient && confirmed && !c.vetoed && !c.claimed) {
         console.log(`Claiming contribution ID=${c.id}`);
-        return kredits.Contribution.functions.claim(c.id, { gasLimit: 500000 }).then(tx => {
+        return kredits.Contribution.contract.claim(c.id, { gasLimit: 500000 }).then(tx => {
           table.push([
             c.id.toString(),
             `${c.description}`,
diff --git a/scripts/cli.js b/scripts/cli.js
index 0d6753f..33f1476 100644
--- a/scripts/cli.js
+++ b/scripts/cli.js
@@ -17,7 +17,7 @@ module.exports = async function(callback) {
 
       method = await promptly.prompt('Function: ');
     }
-    if (!contractWrapper[method] && !contractWrapper.functions[method]) {
+    if (!contractWrapper[method] && !contractWrapper.contract[method]) {
       callback(new Error(`Method ${method} is not defined on ${contractName}`));
       return;
     }
@@ -33,7 +33,7 @@ module.exports = async function(callback) {
     if (contractWrapper[method]) {
       func = contractWrapper[method];
     } else {
-      func = contractWrapper.functions[method];
+      func = contractWrapper.contract[method];
     }
     func.apply(contractWrapper, args).then((result) => {
       console.log("\nResult:");
diff --git a/scripts/current-address.js b/scripts/current-address.js
index 7776569..b4c418f 100644
--- a/scripts/current-address.js
+++ b/scripts/current-address.js
@@ -1,9 +1,12 @@
 const knownDAOAddresses = require('../lib/addresses/dao.json');
 const knownKreditsKitAddresses = require('../lib/addresses/KreditsKit.json');
 const getNetworkId = require('./helpers/networkid.js')
+const ethers = require('ethers');
 
 module.exports = async function(callback) {
-  const networkId = await getNetworkId(web3)
+  const provider = new ethers.providers.Web3Provider(web3.currentProvider);
+  let network = await provider.getNetwork();
+  let networkId = network.chainId;
 
   console.log('# All known DAO addresses');
   Object.keys(knownDAOAddresses).forEach((networkId) => {
diff --git a/scripts/deploy-kit.js b/scripts/deploy-kit.js
index 275f92c..9c95d56 100644
--- a/scripts/deploy-kit.js
+++ b/scripts/deploy-kit.js
@@ -3,10 +3,10 @@ const deployDAOFactory = require('@aragon/os/scripts/deploy-daofactory.js')
 const fs = require('fs');
 const path = require('path');
 const argv = require('yargs').argv
-const namehash = require('ethers').utils.namehash;
+const ethers = require('ethers');
+const namehash = ethers.utils.namehash;
 
 const fileInject = require('./helpers/file_inject.js')
-const getNetworkId = require('./helpers/networkid.js')
 
 const DAOFactory = artifacts.require('DAOFactory')
 const KreditsKit = artifacts.require('KreditsKit')
@@ -26,9 +26,10 @@ const daoFactoryAddress = kreditsArappConfig.daoFactory || argv['daoFactory']
 
 const ensAddr = arapp.environments[environment].registry || argv['ensAddress']
 
-
 module.exports = async function(callback) {
-  const networkId = await getNetworkId(web3)
+  const provider = new ethers.providers.Web3Provider(web3.currentProvider);
+  const network = await provider.getNetwork();
+  const networkId = network.chainId;
   console.log(`Deploying to networkId: ${networkId}`)
 
   if (!ensAddr) {
diff --git a/scripts/helpers/init_kredits.js b/scripts/helpers/init_kredits.js
index e151977..9a5725d 100644
--- a/scripts/helpers/init_kredits.js
+++ b/scripts/helpers/init_kredits.js
@@ -1,6 +1,5 @@
 const argv = require('yargs').argv;
 const ethers = require('ethers');
-const getNetworkId = require('./networkid.js');
 const Kredits = require('../../lib/kredits');
 
 const arapp = require('../../arapp.json');
@@ -10,7 +9,7 @@ const apm = arapp.environments[environment].apm;
 module.exports = async function(web3) {
   return new Promise((resolve, reject) => {
     const provider = new ethers.providers.Web3Provider(web3.currentProvider);
-    let signer = provider.getSigner();
+    const signer = provider.getSigner();
     // checking if siner supports signing transactions
     signer.getAddress().then(_ => {
       new Kredits(provider, signer, { apm }).init().then(kredits => {
diff --git a/scripts/helpers/networkid.js b/scripts/helpers/networkid.js
deleted file mode 100644
index a1b517d..0000000
--- a/scripts/helpers/networkid.js
+++ /dev/null
@@ -1,17 +0,0 @@
-module.exports = function(web3) {
-  return new Promise((resolve, reject) => {
-    let func;
-    if (web3.version.getNetwork) {
-      func = web3.version.getNetwork;
-    } else {
-      func = web3.eth.net.getId;
-    }
-    func((err, network) => {
-      if (err) {
-        reject(err);
-      } else {
-        resolve(network);
-      }
-    })
-  })
-}
diff --git a/scripts/helpers/update_local_networkid.js b/scripts/helpers/update_local_networkid.js
index b4bda0f..79575a3 100644
--- a/scripts/helpers/update_local_networkid.js
+++ b/scripts/helpers/update_local_networkid.js
@@ -1,12 +1,14 @@
 const fs = require('fs');
-const getNetworkId = require('./networkid.js');
+const ethers = require('ethers');
 
 module.exports = async function(callback) {
   const daoAddressPath = 'lib/addresses/dao.json';
 
   // TODO maybe do the same for KreditsKit address file
   try {
-    const networkId = await getNetworkId(web3);
+    const provider = new ethers.providers.Web3Provider(web3.currentProvider);
+    const network = await provider.getNetwork();
+    const networkId = network.chainId;
     const daoAddresses = JSON.parse(fs.readFileSync(daoAddressPath));
     const oldNetworkId = Math.max(...Object.keys(daoAddresses).map(a => parseInt(a)));
     const localDaoAddress = daoAddresses[oldNetworkId];
diff --git a/scripts/list-contributions.js b/scripts/list-contributions.js
index bfdc958..3cb582e 100644
--- a/scripts/list-contributions.js
+++ b/scripts/list-contributions.js
@@ -41,8 +41,8 @@ module.exports = async function(callback) {
 
     console.log(table.toString());
 
-    let totalKreditsEarnedUnConfirmed = await kredits.Contribution.functions.totalKreditsEarned(false);
-    let totalKreditsEarnedConfirmed = await kredits.Contribution.functions.totalKreditsEarned(true);
+    let totalKreditsEarnedUnConfirmed = await kredits.Contribution.contract.totalKreditsEarned(false);
+    let totalKreditsEarnedConfirmed = await kredits.Contribution.contract.totalKreditsEarned(true);
     console.log(`Total Kredits: ${totalKreditsEarnedConfirmed} (confirmed) | ${totalKreditsEarnedUnConfirmed} (including unconfirmed)`);
   } catch (err) {
     console.log(err);
diff --git a/scripts/new-dao.js b/scripts/new-dao.js
index 8601034..5a022f8 100644
--- a/scripts/new-dao.js
+++ b/scripts/new-dao.js
@@ -3,13 +3,15 @@ const path = require('path');
 
 const ethers = require('ethers');
 const fileInject = require('./helpers/file_inject.js');
-const getNetworkId = require('./helpers/networkid.js');
 const KreditsKit = require('../lib/kreditskit');
 
 const addressesPath = path.join(__dirname, '..', 'lib/addresses');
 
 module.exports = async function(callback) {
-  const networkId = await getNetworkId(web3)
+  const provider = new ethers.providers.Web3Provider(web3.currentProvider);
+  const signer = provider.getSigner();
+  const network = await provider.getNetwork();
+  const networkId = network.chainId;
   console.log(`Deploying to networkId: ${networkId}`)
 
   let kitAddresseFile = path.join(addressesPath, 'KreditsKit.json');
@@ -20,9 +22,6 @@ module.exports = async function(callback) {
   }
   console.log(`Using KreditsKit at: ${kreditsKitAddress}`);
 
-  const provider = new ethers.providers.Web3Provider(web3.currentProvider);
-  let signer = provider.getSigner();
-
   let kit = await new KreditsKit(provider, signer).init()
 
   // TODO: get rid of the hard coded gas limit
diff --git a/scripts/seeds.js b/scripts/seeds.js
index 8928419..7f628e4 100644
--- a/scripts/seeds.js
+++ b/scripts/seeds.js
@@ -38,7 +38,7 @@ module.exports = async function(callback) {
     if (contractWrapper[method]) {
       func = contractWrapper[method];
     } else {
-      func = contractWrapper.functions[method];
+      func = contractWrapper.contract[method];
     }
     func.apply(contractWrapper, args).then((result) => {
       console.log(`[OK] kredits.${contractName}.${method}(${JSON.stringify(args)}) => ${result.hash}`);
diff --git a/scripts/veto-contribution.js b/scripts/veto-contribution.js
index cad4617..a66fe48 100644
--- a/scripts/veto-contribution.js
+++ b/scripts/veto-contribution.js
@@ -15,7 +15,7 @@ module.exports = async function(callback) {
   console.log(`Recording a veto for contribution #${contributionId}`);
 
   try {
-    kredits.Contribution.functions.veto(contributionId, { gasLimit: 300000 })
+    kredits.Contribution.contract.veto(contributionId, { gasLimit: 300000 })
       .then(result => {
         console.log("\n\nResult:");
         console.log(result);