diff --git a/apps/emqx_auth_mongo/rebar.config b/apps/emqx_auth_mongo/rebar.config
index 78442c00b..c89c15d3c 100644
--- a/apps/emqx_auth_mongo/rebar.config
+++ b/apps/emqx_auth_mongo/rebar.config
@@ -1,6 +1,6 @@
 {deps,
   %% NOTE: mind poolboy version when updating mongodb-erlang version
- [{mongodb, {git,"https://github.com/emqx/mongodb-erlang", {tag, "v3.0.10"}}},
+ [{mongodb, {git,"https://github.com/emqx/mongodb-erlang", {tag, "v3.0.12"}}},
   %% mongodb-erlang uses a special fork https://github.com/comtihon/poolboy.git
   %% (which has overflow_ttl feature added).
   %% However, it references `{branch, "master}` (commit 9c06a9a on 2021-04-07).
diff --git a/scripts/update_appup.escript b/scripts/update_appup.escript
index 19b546f43..9083b62f1 100755
--- a/scripts/update_appup.escript
+++ b/scripts/update_appup.escript
@@ -272,8 +272,9 @@ do_merge_update_actions(App, {New0, Changed0, Deleted0}, OldActions) ->
     New = New0 -- AlreadyHandled,
     Changed = Changed0 -- AlreadyHandled,
     Deleted = Deleted0 -- AlreadyHandled,
+    HasRestart = contains_restart_application(App, OldActions),
     Actions =
-        case contains_restart_application(App, OldActions) of
+        case HasRestart of
             true ->
                 [];
             false ->
@@ -285,7 +286,12 @@ do_merge_update_actions(App, {New0, Changed0, Deleted0}, OldActions) ->
     OldActionsWithStop ++
         Actions ++
         OldActionsAfterStop ++
-        [{delete_module, M} || M <- Deleted] ++
+        case HasRestart of
+            true ->
+                [];
+            false ->
+                [{delete_module, M} || M <- Deleted]
+        end ++
         AppSpecific.
 
 %% If an entry restarts an application, there's no need to use