diff --git a/start-config.yml b/start-config.yml
index 09ef8e48d..a6d3e47af 100644
--- a/start-config.yml
+++ b/start-config.yml
@@ -7,7 +7,7 @@ serviceBinaries:
   openim-msgtransfer: 4
   openim-rpc-conversation: 1
   openim-rpc-auth: 1
-  openim-rpc-group: 2
+  openim-rpc-group: 1
   openim-rpc-friend: 1
   openim-rpc-msg: 1
   openim-rpc-third: 1