diff --git a/package-lock.json b/package-lock.json
index cf1b756..da142b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13288,9 +13288,9 @@
       }
     },
     "tslib": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
-      "integrity": "sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ=="
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.11.1.tgz",
+      "integrity": "sha512-aZW88SY8kQbU7gpV19lN24LtXh/yD4ZZg6qieAJDDg+YBsJcSmLGK9QpnUjAKVG/xefmvJGd1WUmfpT/g6AJGA=="
     },
     "tslint": {
       "version": "5.13.1",
diff --git a/package.json b/package.json
index 125ca75..86682a5 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "pusher": "2.2.2",
     "pusher-js": "4.4.0",
     "rxjs": "6.5.5",
-    "tslib": "1.10.0",
+    "tslib": "1.11.1",
     "zone.js": "0.10.2"
   },
   "devDependencies": {