diff --git a/gcloud/Dockerfile b/gcloud/Dockerfile
index 17cf6bf..2cb0289 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 203.0.0
+ENV CLOUD_SDK_DOCKER_VERSION 206.0.0
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \
diff --git a/wireguard/install/Dockerfile b/wireguard/install/Dockerfile
index 9c8aa5b..ca8cdf6 100644
--- a/wireguard/install/Dockerfile
+++ b/wireguard/install/Dockerfile
@@ -18,7 +18,7 @@ RUN apk add --no-cache \
 	libmnl-dev
 
 # https://git.zx2c4.com/WireGuard/refs/
-ENV WIREGUARD_VERSION 0.0.20180620
+ENV WIREGUARD_VERSION 0.0.20180625
 
 RUN set -x \
 	&& apk add --no-cache --virtual .build-deps \