diff --git a/pkgs/by-name/bl/blender/package.nix b/pkgs/by-name/bl/blender/package.nix
index c4d80135ebf5..ade4a3545f62 100644
--- a/pkgs/by-name/bl/blender/package.nix
+++ b/pkgs/by-name/bl/blender/package.nix
@@ -337,6 +337,7 @@ stdenv'.mkDerivation (finalAttrs: {
       ps = python3Packages;
     in
     [
+      ps.cattrs
       ps.materialx
       ps.numpy
       ps.openshadinglanguage