diff --git a/IntegrationTests/CallbackTest.cs b/IntegrationTests/CallbackTest.cs
index 827eaebb9ec9f45cf127bcda279751fc553c5e5c..3a932de134e19b42904b8140d93b862317610152 100644
--- a/IntegrationTests/CallbackTest.cs
+++ b/IntegrationTests/CallbackTest.cs
@@ -95,6 +95,6 @@ public class CallbackTest {
         Assert.Throws<ArgumentException>(() => {
                 FitConnect.Subscriber.VerifyCallback(_callbackSecret, _request);
             })
-            .Message.Should().Be("Request is not authentic");
+            .Message.Should().Be("Verified request does not match authentication");
     }
 }