diff --git a/package.json b/package.json
index 36e4be7..89c0fde 100644
--- a/package.json
+++ b/package.json
@@ -60,6 +60,7 @@
     "koa": "^2.13.4",
     "reflect-metadata": "^0.1.13",
     "ts-jest": "^27.1.3",
+    "tslib": "^2.4.0",
     "typescript": "^4.7.2"
   },
   "dependencies": {