diff --git a/deployment/docker-compose/README.md b/deployment/docker-compose/README.md
index 251d021..5e4797c 100644
--- a/deployment/docker-compose/README.md
+++ b/deployment/docker-compose/README.md
@@ -18,6 +18,8 @@ docker compose up --force-recreate --detach
 
 ## Update app
 
+Adjust `WEB_TAG` in .env if necessary.
+
 ```sh
 ./update.sh
 ```
diff --git a/deployment/docker-compose/update.sh b/deployment/docker-compose/update.sh
index 32f7d80..09075b4 100755
--- a/deployment/docker-compose/update.sh
+++ b/deployment/docker-compose/update.sh
@@ -2,5 +2,5 @@ set -e
 
 docker compose pull web
 docker compose stop web
-docker compose run db-backup /backup.sh
+docker compose exec db-backup /backup.sh
 docker compose up --detach --force-recreate web
\ No newline at end of file