diff --git a/admin-frontend/package.json b/admin-frontend/package.json
index e7b322b5..bddc2cde 100644
--- a/admin-frontend/package.json
+++ b/admin-frontend/package.json
@@ -97,6 +97,7 @@
       "sourceType": "module"
     },
     "rules": {
+      "no-var": "error",
       "vue/max-attributes-per-line": "off",
       "vue/first-attribute-linebreak": "off"
     }
diff --git a/backend-external/package.json b/backend-external/package.json
index d6313ec1..4420588a 100644
--- a/backend-external/package.json
+++ b/backend-external/package.json
@@ -152,10 +152,8 @@
         "error",
         {
           "assertFunctionNames": [
-            [
-              "expect",
-              "request.**.expect"
-            ]
+            "expect",
+            "request.**.expect"
           ]
         }
       ]
diff --git a/backend/package.json b/backend/package.json
index e2d9b269..4963cee2 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -156,10 +156,8 @@
         "error",
         {
           "assertFunctionNames": [
-            [
-              "expect",
-              "request.**.expect"
-            ]
+            "expect",
+            "request.**.expect"
           ]
         }
       ]
diff --git a/frontend/package.json b/frontend/package.json
index 1b9bf961..aa338ae1 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -98,6 +98,7 @@
       "sourceType": "module"
     },
     "rules": {
+      "no-var": "error",
       "vue/max-attributes-per-line": "off",
       "vue/first-attribute-linebreak": "off"
     }