diff --git a/package.json b/package.json
index 60dee64..927759e 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "typescript": ">=2.8.0 || >= 3.2.0-dev || >= 3.3.0-dev || >= 3.4.0-dev || >= 3.5.0-dev || >= 3.6.0-dev || >= 3.6.0-beta || >= 3.7.0-dev || >= 3.7.0-beta"
   },
   "dependencies": {
-    "tslib": "^1.8.1"
+    "tslib": "^2.1.0"
   },
   "engines": {
     "node": ">= 6"