diff --git a/common/src/main/java/org/opensearch/ml/common/CommonValue.java b/common/src/main/java/org/opensearch/ml/common/CommonValue.java
index c69a5e6c08..29980003fa 100644
--- a/common/src/main/java/org/opensearch/ml/common/CommonValue.java
+++ b/common/src/main/java/org/opensearch/ml/common/CommonValue.java
@@ -59,7 +59,7 @@ public class CommonValue {
         public static final Integer ML_MODEL_INDEX_SCHEMA_VERSION = 10;
         public static final String ML_CONNECTOR_INDEX = ".plugins-ml-connector";
         public static final Integer ML_TASK_INDEX_SCHEMA_VERSION = 2;
-        public static final Integer ML_CONNECTOR_SCHEMA_VERSION = 2;
+        public static final Integer ML_CONNECTOR_SCHEMA_VERSION = 3;
         public static final String ML_CONFIG_INDEX = ".plugins-ml-config";
         public static final Integer ML_CONFIG_INDEX_SCHEMA_VERSION = 2;
         public static final String ML_CONTROLLER_INDEX = ".plugins-ml-controller";