diff --git a/src/ConfigCat.Client.Tests/ConfigServiceTests.cs b/src/ConfigCat.Client.Tests/ConfigServiceTests.cs
index feb462c3..24765d58 100644
--- a/src/ConfigCat.Client.Tests/ConfigServiceTests.cs
+++ b/src/ConfigCat.Client.Tests/ConfigServiceTests.cs
@@ -762,6 +762,8 @@ public async Task AutoPollConfigService_GetConfig_FetchesConfigWhenCachedConfigI
             cts.Cancel();
             clientReadyCalled = task == clientReadyTask && task.Status == TaskStatus.RanToCompletion;
 
+            await Task.Yield();
+
             // Wait for the hook event handlers to execute (as that might not happen if the service got disposed immediately).
             SpinWait.SpinUntil(() => configFetchedEvents.TryPeek(out _), TimeSpan.FromSeconds(1));
         }
@@ -835,6 +837,8 @@ public async Task AutoPollConfigService_GetConfig_ReturnsExpiredConfigWhenCantRe
             cts.Cancel();
             clientReadyCalled = task == clientReadyTask && task.Status == TaskStatus.RanToCompletion;
 
+            await Task.Yield();
+
             // Wait for the hook event handlers to execute (as that might not happen if the service got disposed immediately).
             SpinWait.SpinUntil(() => configFetchedEvents.TryPeek(out _), TimeSpan.FromSeconds(1));
         }