diff --git a/hugegraph-core/src/main/java/org/apache/hugegraph/version/CoreVersion.java b/hugegraph-core/src/main/java/org/apache/hugegraph/version/CoreVersion.java
index 603bf618bc..d8e422f823 100644
--- a/hugegraph-core/src/main/java/org/apache/hugegraph/version/CoreVersion.java
+++ b/hugegraph-core/src/main/java/org/apache/hugegraph/version/CoreVersion.java
@@ -40,6 +40,7 @@ public class CoreVersion {
 
     public static void check() {
         // Check version of hugegraph-common
+        // TODO: why shall we check it? Update it if need
         VersionUtil.check(CommonVersion.VERSION, "2.1.0", "2.2.0", CommonVersion.NAME);
     }
 }