diff --git a/debian-build-opennebula-image.sh b/debian-build-opennebula-image.sh
index d18e349..279c901 100755
--- a/debian-build-opennebula-image.sh
+++ b/debian-build-opennebula-image.sh
@@ -9,7 +9,7 @@ set -e
 set -x
 
 # XXX: Handle command-line arguments?
-RELEASE=buster # 10.X
+RELEASE=bullseye # 11.X
 ARCH=amd64
 IMAGE_PATH=debian-$RELEASE-$(date --iso-8601).img.qcow2
 IMAGE_SIZE=10G