diff --git a/tensorflow/tools/ci_build/Dockerfile.pi-python3 b/tensorflow/tools/ci_build/Dockerfile.pi-python3
index c6f88c92427fbb..f3e21e573429ba 100644
--- a/tensorflow/tools/ci_build/Dockerfile.pi-python3
+++ b/tensorflow/tools/ci_build/Dockerfile.pi-python3
@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210416
 
 LABEL maintainer="Terry Heo <terryheo@google.com>"