diff --git a/lib/addresses.json b/lib/addresses.json
index cba931a..da4fcc1 100644
--- a/lib/addresses.json
+++ b/lib/addresses.json
@@ -1,4 +1,10 @@
 {
+  "31": {
+    "Contributor": "0x9C66a36fa6296EBb81d8F5D4642B05dF2CE85a8D",
+    "Contribution": "0xa12630a995337e45bDD746B6baedc1Ce2a1DCC9D",
+    "Token": "0x12Eb86338076450f86E5B552556028c7D21eaf1F",
+    "Reimbursement": "0xe2FE7cb00e2f94b8bA0AE526dfbe313f34c66E3C"
+  },
   "1337": {
     "Contributor": "0xCc66f9A3cA2670972938FAD91d0865c4a62DFB25",
     "Contribution": "0x8999CaBc43E28202c5A2257f2a95A45b1F8A62BD",