diff --git a/doc/source/admin/dib.rst b/doc/source/admin/dib.rst
index 918cefc..9601399 100644
--- a/doc/source/admin/dib.rst
+++ b/doc/source/admin/dib.rst
@@ -11,7 +11,7 @@ The following should work but receive only limited testing and support:
 
 * CentOS 7 (using Python 3.6)
 * openSUSE Leap 15.1
-* Ubuntu Bionic
+* Ubuntu 20.04 Focal
 
 Building
 --------
diff --git a/zuul.d/ironic-python-agent-builder-jobs.yaml b/zuul.d/ironic-python-agent-builder-jobs.yaml
index c616427..c4111c6 100644
--- a/zuul.d/ironic-python-agent-builder-jobs.yaml
+++ b/zuul.d/ironic-python-agent-builder-jobs.yaml
@@ -145,6 +145,7 @@
     vars:
       image_type: 'dib'
       image_distro: 'ubuntu'
+      image_release: 'focal'
 
 - job:
     name: ironic-python-agent-build-image-tinyipa-ussuri