diff --git a/tensorflow/tools/ci_build/Dockerfile.micro b/tensorflow/tools/ci_build/Dockerfile.micro
index 34c1aa9bf4ed51..07edd7a3f8e832 100644
--- a/tensorflow/tools/ci_build/Dockerfile.micro
+++ b/tensorflow/tools/ci_build/Dockerfile.micro
@@ -1,7 +1,7 @@
 # Use a prebuilt Python image instead of base Ubuntu to speed up the build process,
 # since it has all the build dependencies we need for Micro and downloads much faster
 # than the install process.
-FROM python:3.5-stretch
+FROM python:3.6.14-stretch
 
 LABEL maintainer="Pete Warden <petewarden@google.com>"