diff --git a/doc/api/http_api.md b/doc/api/http_api.md
index 8ce50081..61daeaa3 100644
--- a/doc/api/http_api.md
+++ b/doc/api/http_api.md
@@ -164,7 +164,7 @@ creates a new pad in this group
   * `{code: 1, message:"groupID does not exist", data: null}`
 
 #### listAllGroups()
- * API >= 1
+ * API >= 1.1
 
 lists all existing groups