diff --git a/tests/test_bom_create_releases.py b/tests/test_bom_create_releases.py
index 3cf6e79..57bc63d 100644
--- a/tests/test_bom_create_releases.py
+++ b/tests/test_bom_create_releases.py
@@ -834,7 +834,7 @@ def test_update_release_SourceUrl(self) -> None:
         item2 = Component(name="")
         CycloneDxSupport.update_or_set_ext_ref(
             item2, ExternalReferenceType.DISTRIBUTION,
-            CaPyCliBom.SOURCE_URL_COMMENT, "new_url")
+            CaPyCliBom.SOURCE_URL_COMMENT, "https://some.new/file.tar.gz")
         self.app.update_release(item2, release_data)
         captured = self.capsys.readouterr()  # type: ignore
         assert "differs from BOM URL" in captured.out