diff --git a/gcloud/Dockerfile b/gcloud/Dockerfile
index eb0420b..b54659d 100644
--- a/gcloud/Dockerfile
+++ b/gcloud/Dockerfile
@@ -1,7 +1,7 @@
 FROM python:2-alpine
 
 ENV PATH $PATH:/usr/src/google-cloud-sdk/bin
-ENV CLOUD_SDK_DOCKER_VERSION 217.0.0
+ENV CLOUD_SDK_DOCKER_VERSION 218.0.0
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \