diff --git a/tests/demo/package.json b/tests/demo/package.json
index bcf2f75..ebb098b 100644
--- a/tests/demo/package.json
+++ b/tests/demo/package.json
@@ -7,10 +7,10 @@
     "build": "vue-cli-service build",
     "lint": "vue-cli-service lint",
     "apollo:dev": "vue-cli-service apollo:watch",
-    "apollo:run": "vue-cli-service apollo:run",
-    "test:e2e:dev": "start-server-and-test apollo:dev http://localhost:4000/.well-known/apollo/server-health test:e2e:dev:client",
+    "apollo:run": "vue-cli-service apollo:run --port 4042",
+    "test:e2e:dev": "start-server-and-test apollo:dev http://localhost:4042/.well-known/apollo/server-health test:e2e:dev:client",
     "test:e2e:dev:client": "vue-cli-service test:e2e --mode development",
-    "test:e2e": "start-server-and-test apollo:run http://localhost:4000/.well-known/apollo/server-health test:e2e:client",
+    "test:e2e": "start-server-and-test apollo:run http://localhost:4042/.well-known/apollo/server-health test:e2e:client",
     "test:e2e:client": "vue-cli-service test:e2e --mode production --headless",
     "test": "yarn run lint --no-fix && yarn run test:e2e"
   },
diff --git a/tests/demo/src/vue-apollo.js b/tests/demo/src/vue-apollo.js
index 78fd0ea..d67d10e 100644
--- a/tests/demo/src/vue-apollo.js
+++ b/tests/demo/src/vue-apollo.js
@@ -11,10 +11,10 @@ const AUTH_TOKEN = 'apollo-token'
 // Config
 const defaultOptions = {
   // You can use `https` for secure connection (recommended in production)
-  httpEndpoint: process.env.VUE_APP_GRAPHQL_HTTP || 'http://localhost:4000/graphql',
+  httpEndpoint: process.env.VUE_APP_GRAPHQL_HTTP || 'http://localhost:4042/graphql',
   // You can use `wss` for secure connection (recommended in production)
   // Use `null` to disable subscriptions
-  wsEndpoint: process.env.VUE_APP_GRAPHQL_WS || 'ws://localhost:4000/graphql',
+  wsEndpoint: process.env.VUE_APP_GRAPHQL_WS || 'ws://localhost:4042/graphql',
   // LocalStorage token
   tokenName: AUTH_TOKEN,
   // Enable Automatic Query persisting with Apollo Engine