diff --git a/launcher/cloudbuild.yaml b/launcher/cloudbuild.yaml
index 8faa3951..43384799 100644
--- a/launcher/cloudbuild.yaml
+++ b/launcher/cloudbuild.yaml
@@ -1,7 +1,7 @@
 substitutions:
   # using this base image for now, because there is an issue causing the newest COS dev
   # image not booting with cs.
-  '_BASE_IMAGE': '' # left empty means using the latest image in the family
+  '_BASE_IMAGE': 'cos-dev-117-18374-0-0' # left empty means using the latest image in the family
   '_BASE_IMAGE_FAMILY': 'cos-dev' # base image family
   '_OUTPUT_IMAGE_PREFIX': 'confidential-space'
   '_OUTPUT_IMAGE_SUFFIX': ''