diff --git a/server/libs/message-bus/src/test/scala/com/prisma/messagebus/pubsub/inmemory/PubSubRouterAltSpec.scala b/server/libs/message-bus/src/test/scala/com/prisma/messagebus/pubsub/inmemory/PubSubRouterAltSpec.scala
index bfc5f5f04d..fa947a7af4 100644
--- a/server/libs/message-bus/src/test/scala/com/prisma/messagebus/pubsub/inmemory/PubSubRouterAltSpec.scala
+++ b/server/libs/message-bus/src/test/scala/com/prisma/messagebus/pubsub/inmemory/PubSubRouterAltSpec.scala
@@ -61,7 +61,7 @@ class PubSubRouterAltSpec
       router.router.routees.length shouldEqual 1
 
       system.stop(probe.ref)
-      Thread.sleep(50)
+      Thread.sleep(500)
       router.router.routees.length shouldEqual 0
     }
   }