diff --git a/packages/0x.js/CHANGELOG.json b/packages/0x.js/CHANGELOG.json
index 59fcf3a706..c8ba58c018 100644
--- a/packages/0x.js/CHANGELOG.json
+++ b/packages/0x.js/CHANGELOG.json
@@ -1,4 +1,12 @@
 [
+    {
+        "version": "6.1.0",
+        "changes": [
+            {
+                "note": "Add optional `exchangeAddress` parameter to `signatureUtils.isValidSignatureAsync` to fix `Validator` type signatures."
+            }
+        ]
+    },
     {
         "timestamp": 1565296576,
         "version": "6.0.15",
diff --git a/packages/order-watcher/CHANGELOG.json b/packages/order-watcher/CHANGELOG.json
index bcc5903b58..c460082738 100644
--- a/packages/order-watcher/CHANGELOG.json
+++ b/packages/order-watcher/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "4.0.18",
+        "changes": [
+            {
+                "note": "Pass `signedOrder.exchangeAddress` to `signatureUtils.isValidSignatureAsync` when adding an order to watcher.",
+                "pr": 2017
+            }
+        ]
+    },
     {
         "timestamp": 1565296576,
         "version": "4.0.17",