diff --git a/config/db/V3.6__sys_user_token_drop_index.sql b/config/db/V3.6__sys_user_token_drop_index.sql
index 91682ede..0d257821 100644
--- a/config/db/V3.6__sys_user_token_drop_index.sql
+++ b/config/db/V3.6__sys_user_token_drop_index.sql
@@ -1,23 +1 @@
-DROP PROCEDURE IF EXISTS del_idx;
-
-create procedure del_idx(IN p_tablename varchar(200), IN p_idxname VARCHAR(200))
-
-begin
-
-DECLARE str VARCHAR(250);
-
-set @str=concat(' drop index ',p_idxname,' on ',p_tablename);
-
-select count(*) into @cnt from information_schema.statistics where table_name=p_tablename and index_name=p_idxname ;
-
-if @cnt >0 then
-
-PREPARE stmt FROM @str;
-
-EXECUTE stmt ;
-
-end if;
-
-end ;
-
-call del_idx('sys_user_token','user_id');
\ No newline at end of file
+DROP INDEX user_id ON sys_user_token;
\ No newline at end of file