diff --git a/delivery.yaml b/delivery.yaml
index fb6af53a11..4cc90efc3e 100644
--- a/delivery.yaml
+++ b/delivery.yaml
@@ -104,7 +104,7 @@ pipeline:
   type: script
   vm_config:
     type: linux
-    image: cdp-runtime/mkdocs-v9
+    image: cdp-runtime/mkdocs-v9:main-135
     size: small
   commands:
   - desc: install deps