diff --git a/docker-compose.yml b/docker-compose.yml
index d9e79ae8..265b0fb3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -32,8 +32,10 @@ services:
     image: ghcr.io/kioui/tosti:latest
     restart: unless-stopped
     networks:
-      - web
-      - db
+      web:
+        - aliases:
+            - yivi.tosti.science.ru.nl
+      db:
     expose: 
       - "80"
     depends_on:
@@ -65,9 +67,6 @@ services:
       DEFAULT_FROM_EMAIL: "TOSTI <www-tosti@science.ru.nl>"
       SERVER_EMAIL: "www-tosti@science.ru.nl"
 
-    extra_hosts:
-      - "yivi.tosti.science.ru.nl:172.23.0.4"
-
     healthcheck:
       test: ["CMD", "python", "manage.py", "check"]
       interval: 10s
@@ -79,8 +78,10 @@ services:
     entrypoint: ["/bin/sh", "/entrypoint_cron.sh"]
     restart: unless-stopped
     networks:
-      - web
-      - db
+      web:
+        - aliases:
+            - yivi.tosti.science.ru.nl
+      db:
     depends_on:
       - database
       - yivi
@@ -95,9 +96,6 @@ services:
       POSTGRES_PORT: 5432
       DJANGO_SECRET_KEY: ${DJANGO_SECRET_KEY}
 
-    extra_hosts:
-      - "yivi.tosti.science.ru.nl:172.23.0.4"
-
 networks:
   web:
     external: true