diff --git a/python-devpi-client.spec b/python-devpi-client.spec
index 8f1d205..afe4a42 100644
--- a/python-devpi-client.spec
+++ b/python-devpi-client.spec
@@ -34,7 +34,9 @@ BuildRequires:  python-rpm-macros
 Requires:       python-build
 Requires:       python-check-manifest >= 0.28
 Requires:       python-devpi-common >= 3.6.0
+Requires:       python-iniconfig
 Requires:       python-pkginfo >= 1.4.2
+Requires:       python-platformdirs
 Requires:       python-pluggy >= 0.6.0
 Requires:       python-py >= 1.4.31
 Requires:       python-tox >= 3.1.0