diff --git a/pkg/keyspace/tso_keyspace_group.go b/pkg/keyspace/tso_keyspace_group.go
index bb0f413fb2d..ce9e3005bbc 100644
--- a/pkg/keyspace/tso_keyspace_group.go
+++ b/pkg/keyspace/tso_keyspace_group.go
@@ -164,7 +164,7 @@ func (m *GroupManager) startWatchLoop() {
 		}
 		resp, err = etcdutil.EtcdKVGet(m.client, m.tsoServiceKey, clientv3.WithRange(m.tsoServiceEndKey))
 		if err == nil {
-			revision = resp.Header.Revision
+			revision = resp.Header.Revision + 1
 			for _, item := range resp.Kvs {
 				s := &discovery.ServiceRegistryEntry{}
 				if err := json.Unmarshal(item.Value, s); err != nil {
diff --git a/pkg/tso/keyspace_group_manager.go b/pkg/tso/keyspace_group_manager.go
index 49529998ba9..bc329f5552f 100644
--- a/pkg/tso/keyspace_group_manager.go
+++ b/pkg/tso/keyspace_group_manager.go
@@ -415,7 +415,7 @@ func (kgm *KeyspaceGroupManager) loadKeyspaceGroups(
 	}
 
 	if resp.Header != nil {
-		revision = resp.Header.Revision
+		revision = resp.Header.Revision + 1
 	}
 
 	return revision, kgs, resp.More, nil