diff --git a/docker-compose.yml b/docker-compose.yml
index 3670195..f9cdb4c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,6 +8,8 @@ services:
       - ./nginx.conf:/etc/nginx/nginx.conf:ro
     networks:
       - demos-net
+    environment:
+      - NODE_ENV=production
 
   main-website:
     image: registry.boomlab.party/rheinsw/demo-websites/main-website
@@ -17,6 +19,8 @@ services:
     restart: on-failure
     networks:
       - demos-net
+    environment:
+      - NODE_ENV=production
 
   ld1:
     image: registry.boomlab.party/rheinsw/demo-websites/ld1
@@ -26,6 +30,8 @@ services:
     restart: on-failure
     networks:
       - demos-net
+    environment:
+      - NODE_ENV=production
 
 networks:
   demos-net: