diff --git a/.bazelversion b/.bazelversion
new file mode 100644
index 00000000..8f0591a5
--- /dev/null
+++ b/.bazelversion
@@ -0,0 +1 @@
+6.x
diff --git a/cloudbuild.yaml b/cloudbuild.yaml
index 5e7446c6..5c329fce 100644
--- a/cloudbuild.yaml
+++ b/cloudbuild.yaml
@@ -34,7 +34,7 @@ steps:
     path: /root/.ssh
 
 # Run the build
-- name: gcr.io/cloud-builders/bazel
+- name: gcr.io/cloud-builders/bazel:6.4.0
   entrypoint: 'bash'
   args:
   - '-c'