diff --git a/hooks/build b/hooks/build
index 4c69a76..7a366b4 100644
--- a/hooks/build
+++ b/hooks/build
@@ -4,6 +4,7 @@
 
 # $IMAGE_NAME var is injected into the build so the tag is correct.
 
+export DOCKER_BUILDKIT=1
 echo "Build hook running"
 docker build --build-arg BUILD_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"` \
              --build-arg VCS_REF=`git rev-parse --short HEAD` \