diff --git a/tensorflow/tools/ci_build/Dockerfile.pi-python38 b/tensorflow/tools/ci_build/Dockerfile.pi-python38
index c07cb1d854967d..96a50af75993b3 100644
--- a/tensorflow/tools/ci_build/Dockerfile.pi-python38
+++ b/tensorflow/tools/ci_build/Dockerfile.pi-python38
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210416
 
 LABEL maintainer="Terry Heo <terryheo@google.com>"