diff --git a/package-lock.json b/package-lock.json
index ea36cff..9d274b6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "ngx-webstorage-service": "^4.1.0",
         "normalize.css": "^8.0.1",
         "rxjs": "~6.6.7",
-        "tslib": "^2.3.1",
+        "tslib": "^2.4.0",
         "zone.js": "~0.11.4"
       },
       "devDependencies": {
@@ -293,6 +293,12 @@
         "source-map": "^0.6.0"
       }
     },
+    "node_modules/@angular-devkit/build-angular/node_modules/tslib": {
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
+      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==",
+      "dev": true
+    },
     "node_modules/@angular-devkit/build-webpack": {
       "version": "0.1301.2",
       "resolved": "https://registry.npmjs.org/@angular-devkit/build-webpack/-/build-webpack-0.1301.2.tgz",
@@ -13717,9 +13723,9 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
-      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw=="
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
     },
     "node_modules/tslint": {
       "version": "6.1.3",
@@ -14911,6 +14917,12 @@
             "buffer-from": "^1.0.0",
             "source-map": "^0.6.0"
           }
+        },
+        "tslib": {
+          "version": "2.3.1",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
+          "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw==",
+          "dev": true
         }
       }
     },
@@ -25045,9 +25057,9 @@
       }
     },
     "tslib": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.3.1.tgz",
-      "integrity": "sha512-77EbyPPpMz+FRFRuAFlWMtmgUWGe9UOG2Z25NqCwiIjRhOf5iKGuzSe5P2w1laq+FkRy4p+PCuVkJSGkzTEKVw=="
+      "version": "2.4.0",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.4.0.tgz",
+      "integrity": "sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ=="
     },
     "tslint": {
       "version": "6.1.3",
diff --git a/package.json b/package.json
index f15b02d..02c66d1 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "ngx-webstorage-service": "^4.1.0",
     "normalize.css": "^8.0.1",
     "rxjs": "~6.6.7",
-    "tslib": "^2.3.1",
+    "tslib": "^2.4.0",
     "zone.js": "~0.11.4"
   },
   "devDependencies": {