diff --git a/tests/_async/test_gotrue_admin_api.py b/tests/_async/test_gotrue_admin_api.py
index a70380cf..edb0a4e7 100644
--- a/tests/_async/test_gotrue_admin_api.py
+++ b/tests/_async/test_gotrue_admin_api.py
@@ -270,4 +270,4 @@ async def test_verify_otp_with_invalid_phone_number():
         )
         assert False
     except AuthError as e:
-        assert e.message == "Invalid phone number format"
+        assert e.message == "Invalid phone number format (E.164 required)"
diff --git a/tests/_sync/test_gotrue_admin_api.py b/tests/_sync/test_gotrue_admin_api.py
index 34cd9580..90d235af 100644
--- a/tests/_sync/test_gotrue_admin_api.py
+++ b/tests/_sync/test_gotrue_admin_api.py
@@ -270,4 +270,4 @@ def test_verify_otp_with_invalid_phone_number():
         )
         assert False
     except AuthError as e:
-        assert e.message == "Invalid phone number format"
+        assert e.message == "Invalid phone number format (E.164 required)"