diff --git a/python38.changes b/python38.changes
index 6a8e6e8..18b8bb5 100644
--- a/python38.changes
+++ b/python38.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Aug  2 12:35:43 UTC 2021 - Matej Cepl <mcepl@suse.com>
+
+- Use versioned python-Sphinx to avoid dependency on other
+  version of Python (bsc#1183858).
+
 -------------------------------------------------------------------
 Fri Jun 18 22:45:17 UTC 2021 - Matej Cepl <mcepl@suse.com>
 
diff --git a/python38.spec b/python38.spec
index 20c7d33..3870ad5 100644
--- a/python38.spec
+++ b/python38.spec
@@ -175,12 +175,10 @@ BuildRequires:  pkgconfig(libnsl)
 BuildRequires:  pkgconfig(libtirpc)
 %endif
 %if %{with doc}
-# Here we just run sphinx and we can use generic one, we don't need
-# the flavor variant
-BuildRequires:  python3-Sphinx
 %if 0%{?suse_version} > 1500
-BuildRequires:  python3-python-docs-theme
-BuildRequires:  python3-sphinxcontrib-qthelp >= 1.0.2
+BuildRequires:  %{python_pkg_name}-Sphinx
+BuildRequires:  %{python_pkg_name}-python-docs-theme
+BuildRequires:  %{python_pkg_name}-sphinxcontrib-qthelp >= 1.0.2
 %endif
 %endif
 %if %{with general}