diff --git a/package.json b/package.json
index f55ff9de..8dfa9e6d 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
   "homepage": "https://github.com/VadimDez/ng2-pdf-viewer#readme",
   "dependencies": {
     "pdfjs-dist": "~2.13.216",
-    "tslib": "^2.3.1"
+    "tslib": "^2.4.0"
   },
   "peerDependencies": {
     "pdfjs-dist": "~2.13.216"