diff --git a/compose.yml b/compose.yml
index d0c3a7d..a10dbf3 100644
--- a/compose.yml
+++ b/compose.yml
@@ -85,8 +85,7 @@ services:
     networks:
       - internal
     deploy:
-      labels:
-        - coop-cloud.${STACK_NAME}.cron.version=*image-
+      labels: ['coop-cloud.${STACK_NAME}.cron.version=*image-']
   worker:
     image: *image
     environment:
@@ -98,8 +97,7 @@ services:
     networks:
       - internal
     deploy:
-      labels:
-        - coop-cloud.${STACK_NAME}.worker.version=*image-
+      labels: ['coop-cloud.${STACK_NAME}.worker.version=*image-']
   smtp:
     image: *image
     configs: *configs
@@ -136,15 +134,13 @@ services:
     networks:
       - internal
     deploy:
-      labels:
-        - coop-cloud.${STACK_NAME}.db.version=10.6-171746d0
+      labels: ['coop-cloud.${STACK_NAME}.db.version=10.6-171746d0']
   cache:
     image: "redis:6"
     networks:
       - internal
     deploy:
-      labels:
-        - coop-cloud.${STACK_NAME}.cache.version=6-7e2c6181
+      labels: ['coop-cloud.${STACK_NAME}.cache.version=6-7e2c6181']
 networks:
   internal:
   proxy: