diff --git a/validations/undercloud-disk-space.yaml b/validations/undercloud-disk-space.yaml
index dea8d0b69..560b89011 100644
--- a/validations/undercloud-disk-space.yaml
+++ b/validations/undercloud-disk-space.yaml
@@ -14,6 +14,6 @@
       groups:
         - prep
         - pre-introspection
-    min_undercloud_disk_gb: 60
+    min_undercloud_disk_gb: 100
   tasks:
   - include_tasks: tasks/disk_space.yaml