diff --git a/contracts/zero-ex/CHANGELOG.json b/contracts/zero-ex/CHANGELOG.json
index 6b357dfcf8..c78faaf6f4 100644
--- a/contracts/zero-ex/CHANGELOG.json
+++ b/contracts/zero-ex/CHANGELOG.json
@@ -1,4 +1,12 @@
 [
+    {
+        "version": "0.39.0",
+        "changes": [
+            {
+                "note": "Add KyberElastic mixin for Ethereum, Polygon, Arbitrum, Avalanche"
+            }
+        ]
+    },
     {
         "timestamp": 1675210931,
         "version": "0.38.6",