diff --git a/update.sh b/update.sh
index 8405afe..0255e77 100755
--- a/update.sh
+++ b/update.sh
@@ -1,5 +1,7 @@
 #!/bin/bash -e
 
+export DOCKER_BUILDKIT=1
+
 docker build -t registry.lubiland.de/unifi-controller unifi-controller/
 docker push registry.lubiland.de/unifi-controller
 docker stack deploy -c docker-compose.yml --with-registry-auth unifi