diff --git a/package.json b/package.json
index 0b310c95..5594a197 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "snazzy": "8.0.0",
     "ts-node": "9.1.1",
     "ts-node-test-register": "9.0.1",
-    "tslib": "2.5.0",
+    "tslib": "2.5.3",
     "tslint": "6.1.3",
     "tslint-config-prettier": "1.18.0",
     "tslint-plugin-prettier": "2.2.0",