diff --git a/src/ServiceControl.Transports.Tests/TransportTestFixture.cs b/src/ServiceControl.Transports.Tests/TransportTestFixture.cs
index 7c36817a98..0d4f82d592 100644
--- a/src/ServiceControl.Transports.Tests/TransportTestFixture.cs
+++ b/src/ServiceControl.Transports.Tests/TransportTestFixture.cs
@@ -185,7 +185,7 @@ protected Task CreateTestQueue(string queueName)
             return configuration.TransportCustomization.ProvisionQueues(transportSettings, []);
         }
 
-        protected static TimeSpan TestTimeout = TimeSpan.FromSeconds(60);
+        protected static TimeSpan TestTimeout = TimeSpan.FromMinutes(5);
 
         protected async Task SendAndReceiveMessages(string queueName, int numMessagesToIngest)
         {
@@ -200,7 +200,7 @@ await StartQueueIngestor(
 
                     if (numMessagesIngested == numMessagesToIngest)
                     {
-                        onMessagesProcessed.SetResult(true);
+                        onMessagesProcessed.TrySetResult(true);
                     }
 
                     return Task.CompletedTask;