diff --git a/broker/src/test/java/io/moquette/testclient/Client.java b/broker/src/test/java/io/moquette/testclient/Client.java
index 14918b749..b383eff9e 100644
--- a/broker/src/test/java/io/moquette/testclient/Client.java
+++ b/broker/src/test/java/io/moquette/testclient/Client.java
@@ -52,7 +52,7 @@ public interface ICallback {
 
     private static final Logger LOG = LoggerFactory.getLogger(Client.class);
 
-    private static final Duration TIMEOUT_DURATION = Duration.ofMillis(500);
+    private static final Duration TIMEOUT_DURATION = Duration.ofMillis(1000);
 
     final ClientNettyMQTTHandler handler = new ClientNettyMQTTHandler();
     EventLoopGroup workerGroup;