diff --git a/contracts/upgradeable_contracts/arbitrary_message/VersionableAMB.sol b/contracts/upgradeable_contracts/arbitrary_message/VersionableAMB.sol
index 6ec749ebc..e6f985f20 100644
--- a/contracts/upgradeable_contracts/arbitrary_message/VersionableAMB.sol
+++ b/contracts/upgradeable_contracts/arbitrary_message/VersionableAMB.sol
@@ -17,6 +17,6 @@ contract VersionableAMB is VersionableBridge {
      * @return (major, minor, patch) version triple
      */
     function getBridgeInterfacesVersion() external pure returns (uint64 major, uint64 minor, uint64 patch) {
-        return (6, 0, 0);
+        return (6, 1, 0);
     }
 }
diff --git a/package-lock.json b/package-lock.json
index e4dff6bf7..3bb2c4721 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "tokenbridge-contracts",
-  "version": "6.0.0-rc0",
+  "version": "6.0.0-rc1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index a24d45ab1..b1129dffc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tokenbridge-contracts",
-  "version": "6.0.0-rc0",
+  "version": "6.0.0-rc1",
   "description": "Bridge",
   "main": "index.js",
   "scripts": {