diff --git a/frontend/ng-karaoqueue/package-lock.json b/frontend/ng-karaoqueue/package-lock.json
index bbb61d3..8764511 100644
--- a/frontend/ng-karaoqueue/package-lock.json
+++ b/frontend/ng-karaoqueue/package-lock.json
@@ -23,7 +23,7 @@
         "runtime-config-loader": "^2.0.0",
         "rxjs": "~6.5.4",
         "tslib": "^2.0.0",
-        "zone.js": "~0.11.8"
+        "zone.js": "~0.11.4"
       },
       "devDependencies": {
         "@angular/cli": "~12.2.18",
diff --git a/frontend/ng-karaoqueue/package.json b/frontend/ng-karaoqueue/package.json
index 66272fc..0e54bd8 100644
--- a/frontend/ng-karaoqueue/package.json
+++ b/frontend/ng-karaoqueue/package.json
@@ -27,7 +27,7 @@
     "runtime-config-loader": "^2.0.0",
     "rxjs": "~6.5.4",
     "tslib": "^2.0.0",
-    "zone.js": "~0.11.8"
+    "zone.js": "~0.11.4"
   },
   "devDependencies": {
     "@angular/cli": "~12.2.18",