diff --git a/shell.nix b/shell.nix
index 19366c3..1303344 100644
--- a/shell.nix
+++ b/shell.nix
@@ -3,8 +3,10 @@ let
 
 in 
 pkgs.mkShell {
-  buildInputs = with pkgs.python311Packages; [
-    numpy
-    (opencv4.override { enableGtk2 = true; })
+  buildInputs = with pkgs; [
+    python311Packages.numpy
+    (python311Packages.opencv4.override { 
+      enableGtk2 = true; 
+    })
   ];
 }