diff --git a/flake.nix b/flake.nix
index ec1aaca..79bb37a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -87,6 +87,10 @@
           });
           bpy = blender.overrideAttrs (old: {
             pname = "bpy";
+            src = pkgs.fetchurl {
+              url = "https://download.blender.org/source/${old.pname}-${old.version}.tar.xz";
+              hash = "sha256-3AAtguPDQMk4VcZoRzDQGAG2aaKbHMa3XuuZC6aecj8=";
+            };
             cmakeFlags = old.cmakeFlags ++ [
               "-DWITH_PYTHON_INSTALL=OFF"
               "-DWITH_AUDASPACE=OFF"
@@ -178,7 +182,6 @@
           devShells.perception =
             let
               rbs-packages = p: with p; [
-                pytorch3d
                 torch
                 torchvision
                 torchaudio