diff --git a/python/flake.nix b/python/flake.nix
index b8682df..b66a1e2 100644
--- a/python/flake.nix
+++ b/python/flake.nix
@@ -21,6 +21,7 @@
           ++ (with pkgs.python311Packages; [
             pip
             python-lsp-server
+            python-lsp-ruff
           ]);
       };
     });