diff --git a/metadata/service/server/cluster.yml b/metadata/service/server/cluster.yml
index 2d222d4..842eaea 100644
--- a/metadata/service/server/cluster.yml
+++ b/metadata/service/server/cluster.yml
@@ -17,7 +17,7 @@
       debug: false
       verbose: true
       database:
-        engine: "mysql+pymysql"
+        engine: "mysql"
         host: ${_param:cluster_vip_address}
         port: 3306
         name: aodh
diff --git a/metadata/service/server/single.yml b/metadata/service/server/single.yml
index 68fc4c1..c1e9322 100644
--- a/metadata/service/server/single.yml
+++ b/metadata/service/server/single.yml
@@ -14,7 +14,7 @@
       version: ${_param:aodh_version}
       ttl: 86400
       database:
-        engine: "mysql+pymysql"
+        engine: "mysql"
         host: ${_param:single_address}
         port: 3306
         name: aodh