diff --git a/package.json b/package.json
index 54ec1ba..5cef4b0 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,8 @@
     "rollup-plugin-serve": "^1.1.0",
     "rollup-plugin-terser": "^7.0.2",
     "rollup-plugin-typescript2": "^0.30.0",
-    "typescript": "^4.8.4"
+    "typescript": "^4.8.4",
+    "tslib": "^2.3.0"  // Añade tslib aquí si no está presente
   },
   "resolutions": {
     "lit": "^2.1.2",