diff --git a/apps/contribution/package.json b/apps/contribution/package.json
index 0a326f9..6f9e581 100644
--- a/apps/contribution/package.json
+++ b/apps/contribution/package.json
@@ -26,7 +26,7 @@
     "publish:minor": "aragon apm publish minor",
     "publish:major": "aragon apm publish major",
     "versions": "aragon apm versions",
-    "test": "TRUFFLE_TEST=true npm run ganache-cli:test",
+    "test": "TRUFFLE_TEST=true PORT=7545 npm run ganache-cli:test",
     "test:gas": "GAS_REPORTER=true npm test",
     "coverage": "SOLIDITY_COVERAGE=true npm run ganache-cli:test",
     "ganache-cli:test": "./node_modules/@aragon/test-helpers/ganache-cli.sh"
diff --git a/apps/contributor/package.json b/apps/contributor/package.json
index 1c99b9e..d7c282d 100644
--- a/apps/contributor/package.json
+++ b/apps/contributor/package.json
@@ -27,7 +27,7 @@
     "publish:minor": "aragon apm publish minor",
     "publish:major": "aragon apm publish major",
     "versions": "aragon apm versions",
-    "test": "TRUFFLE_TEST=true npm run ganache-cli:test",
+    "test": "TRUFFLE_TEST=true PORT=7545 npm run ganache-cli:test",
     "test:gas": "GAS_REPORTER=true npm test",
     "coverage": "SOLIDITY_COVERAGE=true npm run ganache-cli:test",
     "ganache-cli:test": "./node_modules/@aragon/test-helpers/ganache-cli.sh"
diff --git a/apps/proposal/package.json b/apps/proposal/package.json
index befedb9..f4f6a73 100644
--- a/apps/proposal/package.json
+++ b/apps/proposal/package.json
@@ -26,7 +26,7 @@
     "publish:minor": "aragon apm publish minor",
     "publish:major": "aragon apm publish major",
     "versions": "aragon apm versions",
-    "test": "TRUFFLE_TEST=true npm run ganache-cli:test",
+    "test": "TRUFFLE_TEST=true PORT=7545 npm run ganache-cli:test",
     "test:gas": "GAS_REPORTER=true npm test",
     "coverage": "SOLIDITY_COVERAGE=true npm run ganache-cli:test",
     "ganache-cli:test": "./node_modules/@aragon/test-helpers/ganache-cli.sh"
diff --git a/apps/token/package.json b/apps/token/package.json
index 3524af0..04b1a7b 100644
--- a/apps/token/package.json
+++ b/apps/token/package.json
@@ -26,7 +26,7 @@
     "publish:minor": "aragon apm publish minor",
     "publish:major": "aragon apm publish major",
     "versions": "aragon apm versions",
-    "test": "TRUFFLE_TEST=true npm run ganache-cli:test",
+    "test": "TRUFFLE_TEST=true PORT=7545 npm run ganache-cli:test",
     "test:gas": "GAS_REPORTER=true npm test",
     "coverage": "SOLIDITY_COVERAGE=true npm run ganache-cli:test",
     "ganache-cli:test": "./node_modules/@aragon/test-helpers/ganache-cli.sh"