diff --git a/package-lock.json b/package-lock.json
index a3d905b..9b64072 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -5329,6 +5329,12 @@
           "requires": {
             "estree-walker": "^0.6.1"
           }
+        },
+        "tslib": {
+          "version": "1.10.0",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.10.0.tgz",
+          "integrity": "sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==",
+          "dev": true
         }
       }
     },
@@ -6108,9 +6114,9 @@
       }
     },
     "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": "6.0.0",
diff --git a/package.json b/package.json
index 178e13a..515b855 100644
--- a/package.json
+++ b/package.json
@@ -81,6 +81,6 @@
   },
   "dependencies": {
     "fontfaceobserver-es": "^3.3.1",
-    "tslib": "^1.10.0"
+    "tslib": "^1.11.1"
   }
 }