diff --git a/time-tracker-ui/package-lock.json b/time-tracker-ui/package-lock.json
index 21e9c7c..d607ba6 100644
--- a/time-tracker-ui/package-lock.json
+++ b/time-tracker-ui/package-lock.json
@@ -13679,11 +13679,11 @@
       "dev": true
     },
     "zone.js": {
-      "version": "0.11.4",
-      "resolved": "https://registry.npmjs.org/zone.js/-/zone.js-0.11.4.tgz",
-      "integrity": "sha512-DDh2Ab+A/B+9mJyajPjHFPWfYU1H+pdun4wnnk0OcQTNjem1XQSZ2CDW+rfZEUDjv5M19SBqAkjZi0x5wuB5Qw==",
+      "version": "0.11.5",
+      "resolved": "https://registry.npmjs.org/zone.js/-/zone.js-0.11.5.tgz",
+      "integrity": "sha512-D1/7VxEuQ7xk6z/kAROe4SUbd9CzxY4zOwVGnGHerd/SgLIVU5f4esDzQUsOCeArn933BZfWMKydH7l7dPEp0g==",
       "requires": {
-        "tslib": "^2.0.0"
+        "tslib": "^2.3.0"
       },
       "dependencies": {
         "tslib": {
diff --git a/time-tracker-ui/package.json b/time-tracker-ui/package.json
index ef4c91a..f086f2d 100644
--- a/time-tracker-ui/package.json
+++ b/time-tracker-ui/package.json
@@ -30,7 +30,7 @@
     "reflect-metadata": "^0.1.13",
     "rxjs": "~6.6.7",
     "tslib": "^1.14.1",
-    "zone.js": "~0.11.4"
+    "zone.js": "~0.11.5"
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "~0.900.7",