diff --git a/pkgs/development/python-modules/woob/default.nix b/pkgs/development/python-modules/woob/default.nix
index 41450c7e27a8..cf03a672a078 100644
--- a/pkgs/development/python-modules/woob/default.nix
+++ b/pkgs/development/python-modules/woob/default.nix
@@ -49,7 +49,10 @@ buildPythonPackage rec {
     setuptools
   ];
 
-  pythonRelaxDeps = [ "packaging" ];
+  pythonRelaxDeps = [
+    "packaging"
+    "rich"
+  ];
 
   propagatedBuildInputs = [
     babel