diff --git a/apps/emqx/test/emqx_shared_sub_SUITE.erl b/apps/emqx/test/emqx_shared_sub_SUITE.erl
index 7a7729878..0105765e4 100644
--- a/apps/emqx/test/emqx_shared_sub_SUITE.erl
+++ b/apps/emqx/test/emqx_shared_sub_SUITE.erl
@@ -513,7 +513,7 @@ test_two_messages(Strategy, Group) ->
     ok.
 
 last_message(ExpectedPayload, Pids) ->
-    last_message(ExpectedPayload, Pids, 100).
+    last_message(ExpectedPayload, Pids, 1000).
 
 last_message(ExpectedPayload, Pids, Timeout) ->
     receive