diff --git a/package.json b/package.json
index 4a96241..c1a1088 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
   },
   "dependencies": {
     "nodemailer": "^6.3.1",
-    "tslib": "^1.10.0"
+    "tslib": "^2.2.0"
   },
   "devDependencies": {
     "@types/chai": "^4.2.3",