diff --git a/pkgs/development/python-modules/commoncode/default.nix b/pkgs/development/python-modules/commoncode/default.nix
index 4f5235c912c0..d231e2d7a9b2 100644
--- a/pkgs/development/python-modules/commoncode/default.nix
+++ b/pkgs/development/python-modules/commoncode/default.nix
@@ -33,6 +33,8 @@ buildPythonPackage rec {
 
   build-system = [ setuptools-scm ];
 
+  pythonRelaxDeps = [ "beautifulsoup4" ];
+
   dependencies = [
     attrs
     beautifulsoup4