diff --git a/test/TrueLayer.Tests/Mocks/AuthApiMock.cs b/test/TrueLayer.Tests/Mocks/AuthApiMock.cs
index e0972d57..a86600f5 100644
--- a/test/TrueLayer.Tests/Mocks/AuthApiMock.cs
+++ b/test/TrueLayer.Tests/Mocks/AuthApiMock.cs
@@ -15,6 +15,6 @@ public void SetGetAuthToken(ApiResponse<GetAuthTokenResponse> response)
 
     public ValueTask<ApiResponse<GetAuthTokenResponse>> GetAuthToken(GetAuthTokenRequest authTokenRequest, CancellationToken cancellationToken = default)
     {
-        return ValueTask.FromResult(_response!);
+        return new ValueTask<ApiResponse<GetAuthTokenResponse>>(_response!);
     }
 }