diff --git a/python-blinker.changes b/python-blinker.changes
index da47df0..6eaab1b 100644
--- a/python-blinker.changes
+++ b/python-blinker.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sun Nov  3 15:05:58 UTC 2024 - ecsos <ecsos@opensuse.org>
+
+- Add missing build require pallets_sphinx_themes
+  to fix build error under Leap.
+
 -------------------------------------------------------------------
 Tue Oct 22 11:58:39 UTC 2024 - Dirk Müller <dmueller@suse.com>
 
diff --git a/python-blinker.spec b/python-blinker.spec
index 75eef0b..4bb22ef 100644
--- a/python-blinker.spec
+++ b/python-blinker.spec
@@ -26,6 +26,7 @@ Group:          Development/Languages/Python
 URL:            https://github.com/pallets-eco/blinker/
 Source:         https://files.pythonhosted.org/packages/source/b/blinker/blinker-%{version}.tar.gz
 Patch1:         remove-sphinxextensions.patch
+BuildRequires:  %{python_module Pallets-Sphinx-Themes}
 BuildRequires:  %{python_module base >= 3.8}
 BuildRequires:  %{python_module flit-core}
 BuildRequires:  %{python_module pip}