diff --git a/images/keepalived/Dockerfile b/images/keepalived/Dockerfile
index 599a93c..55cb73a 100644
--- a/images/keepalived/Dockerfile
+++ b/images/keepalived/Dockerfile
@@ -12,7 +12,9 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-FROM registry.atmosphere.dev/library/ubuntu:main
+ARG RELEASE
+
+FROM registry.atmosphere.dev/library/ubuntu:${RELEASE}
 RUN <<EOF bash -xe
 apt-get update -qq
 apt-get install -qq -y --no-install-recommends \