diff --git a/modules/session/src/main/java/com/tsurugidb/tsubakuro/common/Session.java b/modules/session/src/main/java/com/tsurugidb/tsubakuro/common/Session.java
index b60d7f23..d6ec5a3d 100644
--- a/modules/session/src/main/java/com/tsurugidb/tsubakuro/common/Session.java
+++ b/modules/session/src/main/java/com/tsurugidb/tsubakuro/common/Session.java
@@ -45,7 +45,7 @@ public interface Session extends ServerResource {
     /**
      * The minor service message version for routing service.
      */
-    int SERVICE_MESSAGE_VERSION_MINOR = 0;
+    int SERVICE_MESSAGE_VERSION_MINOR = 1;
 
     /**
      * Sends a message to the destination server.
@@ -228,4 +228,4 @@ default boolean isClosed() {
      * @param resource the resource related to the Session to be removed
      */
     void remove(@Nonnull ServerResource resource);
-}
\ No newline at end of file
+}