diff --git a/flake.nix b/flake.nix
index 8b5af3e..c881621 100644
--- a/flake.nix
+++ b/flake.nix
@@ -174,7 +174,7 @@
             };
 
           devShells.all = pkgs.mkShell { 
-            packages = [ mayo blender bpy pysdf fstl ];
+            packages = [ blender fstl mayo ];
           };
 
           devShells.perception =
@@ -194,7 +194,6 @@
           devShells.default =
             let
               my-python-packages = p: with p; [ 
-                pysdf
                 unified-planning
                 pybullet
                 scipy