diff --git a/cloudbuild/operator-test.yaml b/cloudbuild/operator-test.yaml
index 5b4a65673..8ccc0ef07 100644
--- a/cloudbuild/operator-test.yaml
+++ b/cloudbuild/operator-test.yaml
@@ -5,7 +5,7 @@ steps:
       - USERNAME=user
       - SSH_ARGS=--internal-ip --ssh-key-expire-after=1d
       - INSTANCE_NAME=kne-presubmit-$BUILD_ID
-      - INSTANCE_ARGS=--network cloudbuild-workers --image-project gep-kne --image-family kne --machine-type e2-standard-16 --preemptible
+      - INSTANCE_ARGS=--network cloudbuild-workers --image-project gep-kne --image-family kne --machine-type e2-standard-16 --boot-disk-size 200GB
       - ZONE=us-central1-a
       - REMOTE_WORKSPACE=/tmp/workspace
       - COMMAND=source /tmp/workspace/cloudbuild/operator-test.sh 2>&1
@@ -14,4 +14,4 @@ timeout: 1800s # TODO: Run this a few times to set a lower timeout.
 
 options:
   pool:
-    name: 'projects/openconfig-lemming/locations/us-central1/workerPools/lemming-workerpool'
\ No newline at end of file
+    name: 'projects/openconfig-lemming/locations/us-central1/workerPools/lemming-workerpool'