diff --git a/package.json b/package.json
index 2a46e55..cd80200 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "eslint": "^10.4.0",
     "happy-dom": "^20.9.0",
     "tsx": "^4.22.3",
+    "typescript": "^6.0.3",
     "vitest": "^4.1.7"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3e61984..6018659 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -48,6 +48,9 @@ importers:
       tsx:
         specifier: ^4.22.3
         version: 4.22.3
+      typescript:
+        specifier: ^6.0.3
+        version: 6.0.3
       vitest:
         specifier: ^4.1.7
         version: 4.1.7(@types/node@25.9.1)(happy-dom@20.9.0)(vite@7.3.3(@types/node@25.9.1)(jiti@2.7.0)(terser@5.48.0)(tsx@4.22.3)(yaml@2.9.0))