diff --git a/tensorflow/tools/ci_build/Dockerfile.cpu b/tensorflow/tools/ci_build/Dockerfile.cpu
index c61fda09af0401..fa5dfeabaab550 100644
--- a/tensorflow/tools/ci_build/Dockerfile.cpu
+++ b/tensorflow/tools/ci_build/Dockerfile.cpu
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210114
 
 LABEL maintainer="Jan Prach <jendap@google.com>"