diff --git a/src/Polyfill/TaskCompletionSource.cs b/src/Polyfill/TaskCompletionSource.cs
index ff7b9ff3..5ae10d89 100644
--- a/src/Polyfill/TaskCompletionSource.cs
+++ b/src/Polyfill/TaskCompletionSource.cs
@@ -2,11 +2,9 @@
 
 #nullable enable
 
-namespace System.Diagnostics;
+namespace System.Threading.Tasks;
 
 using System;
-using System.Threading;
-using System.Threading.Tasks;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 
@@ -99,4 +97,4 @@ public TaskCompletionSource(object? state, TaskCreationOptions creationOptions)
     /// </summary>
     public bool TrySetCanceled(CancellationToken cancellationToken) => inner.TrySetCanceled(default);
 }
-#endif
\ No newline at end of file
+#endif