diff --git a/docker-compose.yml b/docker-compose.yml
index 44aab86e03..3fba6ac27b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3.5'
 services:
   mockserver:
     build: mockserver
-    ports: ['9000:8000']
+    ports: ['8001:8000']
     volumes:
       - './mockserver/public:/home/public'
       - './mockserver/server.py:/home/server.py'
diff --git a/web/src/helpers/api.js b/web/src/helpers/api.js
index 2a61be4831..31806ff644 100644
--- a/web/src/helpers/api.js
+++ b/web/src/helpers/api.js
@@ -18,7 +18,7 @@ function isUsingLocalEndpoint() {
 }
 
 export function getEndpoint() {
-  return isUsingLocalEndpoint() ? 'http://localhost:9000' : 'https://api.electricitymap.org';
+  return isUsingLocalEndpoint() ? 'http://localhost:8001' : 'https://app-backend.electricitymap.org';
 }
 
 export function protectedJsonRequest(path) {