diff --git a/lib-ce/emqx_dashboard/src/emqx_dashboard.app.src b/lib-ce/emqx_dashboard/src/emqx_dashboard.app.src
index 724a76237..e78f1c3f6 100644
--- a/lib-ce/emqx_dashboard/src/emqx_dashboard.app.src
+++ b/lib-ce/emqx_dashboard/src/emqx_dashboard.app.src
@@ -1,6 +1,6 @@
 {application, emqx_dashboard,
  [{description, "EMQ X Web Dashboard"},
-  {vsn, "4.3.6"}, % strict semver, bump manually!
+  {vsn, "4.3.7"}, % strict semver, bump manually!
   {modules, []},
   {registered, [emqx_dashboard_sup]},
   {applications, [kernel,stdlib,mnesia,minirest]},
diff --git a/test/emqx_cm_SUITE.erl b/test/emqx_cm_SUITE.erl
index acafeb36f..a46c046ca 100644
--- a/test/emqx_cm_SUITE.erl
+++ b/test/emqx_cm_SUITE.erl
@@ -183,7 +183,8 @@ t_open_session_race_condition(_) ->
 
     exit(Winner, kill),
     receive {'DOWN', _, process, Winner, _} -> ok end,
-    ignored = gen_server:call(emqx_cm, ignore, infinity), %% sync
+    ignored = gen_server:call(?CM, ignore, infinity), %% sync
+    ok = flush_emqx_pool(),
     ?assertEqual([], emqx_cm:lookup_channels(ClientId)).
 
 t_kick_session_discard_normal(_) ->
@@ -260,6 +261,7 @@ test_kick_session(Action, Reason) ->
             ?assertEqual(Reason, ?WAIT({'DOWN', _, process, Pid1, R}, 2_000, R)),
             ?assertEqual(Reason, ?WAIT({'DOWN', _, process, Pid2, R}, 2_000, R))
     end,
+    ignored = gen_server:call(?CM, ignore, infinity), %% sync
     ok = flush_emqx_pool(),
     ?assertEqual([], emqx_cm:lookup_channels(ClientId)).
 
@@ -271,10 +273,11 @@ test_kick_session(Action, Reason) ->
 %% The number of tasks should be large enough to ensure all workers have
 %% the chance to work on at least one of the tasks.
 flush_emqx_pool() ->
+    Ref = make_ref(),
     Self = self(),
     L = lists:seq(1, 1000),
-    lists:foreach(fun(I) -> emqx_pool:async_submit(fun() -> Self ! {done, I} end, []) end, L),
-    lists:foreach(fun(I) -> receive {done, I} -> ok end end, L).
+    lists:foreach(fun(I) -> emqx_pool:async_submit(fun() -> Self ! {done, I, Ref} end, []) end, L),
+    lists:foreach(fun(I) -> receive {done, I, Ref} -> ok end end, L).
 
 t_discard_session_race(_) ->
     ClientId = rand_client_id(),