diff --git a/docker/cluster-test/Dockerfile b/docker/cluster-test/Dockerfile
index da4f35bd53a6..5ca08db095c0 100644
--- a/docker/cluster-test/Dockerfile
+++ b/docker/cluster-test/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:buster-20210208@sha256:1092695e843ad975267131f27a2b523128c4e03d2d96574bbdd7cf949ed51475 AS toolchain
+FROM debian:buster-20210408@sha256:ba4a437377a0c450ac9bb634c3754a17b1f814ce6fa3157c0dc9eef431b29d1f AS toolchain
 
 # To use http/https proxy while building, use:
 # docker build --build-arg https_proxy=http://fwdproxy:8080 --build-arg http_proxy=http://fwdproxy:8080
@@ -22,7 +22,7 @@ COPY . /diem
 
 RUN ./docker/build-common.sh
 
-FROM debian:buster-20210208@sha256:1092695e843ad975267131f27a2b523128c4e03d2d96574bbdd7cf949ed51475
+FROM debian:buster-20210408@sha256:ba4a437377a0c450ac9bb634c3754a17b1f814ce6fa3157c0dc9eef431b29d1f
 
 RUN apt-get update && apt-get install -y libssl1.1 openssh-client wget && apt-get clean && rm -r /var/lib/apt/lists/*
 RUN cd /usr/local/bin && wget "https://storage.googleapis.com/kubernetes-release/release/v1.17.0/bin/linux/amd64/kubectl" -O kubectl && chmod +x kubectl