diff --git a/playbooks/files/chaosknoten/configs/lists/compose/compose.yaml b/playbooks/files/chaosknoten/configs/lists/compose/compose.yaml
index 162dd42..2ef87aa 100644
--- a/playbooks/files/chaosknoten/configs/lists/compose/compose.yaml
+++ b/playbooks/files/chaosknoten/configs/lists/compose/compose.yaml
@@ -1,7 +1,7 @@
 services:
   mailman-core:
     restart: unless-stopped
-    image: maxking/mailman-core:0.4 # Use a specific version tag (tag latest is not published)
+    image: maxking/mailman-core:0.5 # Use a specific version tag (tag latest is not published)
     container_name: mailman-core
     hostname: mailman-core
     volumes:
@@ -25,7 +25,7 @@ services:
 
   mailman-web:
     restart: unless-stopped
-    image: maxking/mailman-web:0.4 # Use a specific version tag (tag latest is not published)
+    image: maxking/mailman-web:0.5 # Use a specific version tag (tag latest is not published)
     container_name: mailman-web
     hostname: mailman-web
     depends_on:
@@ -56,7 +56,7 @@ services:
     - POSTGRES_DB=mailmandb
     - POSTGRES_USER=mailman
     - POSTGRES_PASSWORD=wvQjbMRnwFuxGEPz
-    image: postgres:11-alpine
+    image: postgres:12-alpine
     volumes:
     - /opt/mailman/database:/var/lib/postgresql/data
     networks: