diff --git a/modules/sculpin.nix b/modules/sculpin.nix
index 7cc1b6f..9393c05 100644
--- a/modules/sculpin.nix
+++ b/modules/sculpin.nix
@@ -3,21 +3,29 @@
     { pkgs, ... }:
     {
       devShells.sculpin = pkgs.mkShell {
-        packages = with pkgs; [
-          (php.buildComposerProject2 {
-            pname = "sculpin";
-            version = "3.3.0-dev";
+        packages =
+          with pkgs;
+          let
+            phpPackages = php84Packages;
+          in
+          [
+            phpPackages.phpstan
+            phpunit
 
-            src = fetchFromGitHub {
-              owner = "sculpin";
-              repo = "sculpin";
-              rev = "03af6498c32663e3d307ebfe346bb8d48feddec5";
-              hash = "sha256-K3wyXRiOIlkfy8Kx8pvIzne+N2XNTxZYyDlunfpQsL8=";
-            };
+            (php.buildComposerProject2 {
+              pname = "sculpin";
+              version = "3.3.0-dev";
 
-            vendorHash = "sha256-b5+Jj8YUy5QzZ/VG0YN58vkknFLYwn97pfrvUGmA+Dc=";
-          })
-        ];
+              src = fetchFromGitHub {
+                owner = "sculpin";
+                repo = "sculpin";
+                rev = "03af6498c32663e3d307ebfe346bb8d48feddec5";
+                hash = "sha256-K3wyXRiOIlkfy8Kx8pvIzne+N2XNTxZYyDlunfpQsL8=";
+              };
+
+              vendorHash = "sha256-b5+Jj8YUy5QzZ/VG0YN58vkknFLYwn97pfrvUGmA+Dc=";
+            })
+          ];
 
         shellHook = ''
           sculpin --version