diff --git a/python-google-cloud-core.changes b/python-google-cloud-core.changes
index b1e7328..28783f9 100644
--- a/python-google-cloud-core.changes
+++ b/python-google-cloud-core.changes
@@ -11,6 +11,7 @@ Sat Apr 16 08:53:50 UTC 2022 - Matej Cepl <mcepl@suse.com>
   - add mypy checking + 'py.typed' files
   - add support for Python 3.10
   - drop python 2.7 support
+- We really don't need mock BR at all.
 
 -------------------------------------------------------------------
 Thu Sep 30 09:03:28 UTC 2021 - Matej Cepl <mcepl@suse.com>
diff --git a/python-google-cloud-core.spec b/python-google-cloud-core.spec
index 8b06fae..791d5d3 100644
--- a/python-google-cloud-core.spec
+++ b/python-google-cloud-core.spec
@@ -28,7 +28,6 @@ Source:         https://files.pythonhosted.org/packages/source/g/google-cloud-co
 BuildRequires:  %{python_module google-api-core >= 1.31.5}
 BuildRequires:  %{python_module google-auth >= 1.25.0}
 BuildRequires:  %{python_module grpcio >= 1.8.2}
-BuildRequires:  %{python_module mock}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes