diff --git a/setup.cfg b/setup.cfg
index c918efa59cb..f78dcc9191b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -33,6 +33,7 @@ install_requires =
     fts3
     gfal2-python
     importlib_metadata >=4.4
+    importlib_resources
     M2Crypto >=0.36
     pexpect
     prompt-toolkit >=3