diff --git a/ansible/group_vars/all/os_images b/ansible/group_vars/all/os_images
new file mode 100644
index 0000000..1ff861f
--- /dev/null
+++ b/ansible/group_vars/all/os_images
@@ -0,0 +1,4 @@
+---
+# Whether to enable the CRB repository and install the EPEL repository before
+# installing packages. Default is false
+os_images_install_epel_repo: true
diff --git a/requirements.yml b/requirements.yml
index 28620f3..7632bbb 100644
--- a/requirements.yml
+++ b/requirements.yml
@@ -3,4 +3,4 @@ collections:
   - name: openstack.cloud
     version: 2.4.1
   - name: stackhpc.openstack
-    version: 0.4.1
+    version: 0.4.2