diff --git a/Dockerfile b/Dockerfile
index f9b0fb0..5c0df1b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,8 @@
-#use 32-bit ubuntu 12.04 required by valgrind. 64-bit has some known issues
-from shawn/ubuntu-precise-i386
+from docker/ubuntu:16.04
 MAINTAINER David Liu <email4dliu@gmail.com>
 
 LABEL Description="Do your C/C++ development in Docker container. Based on Ubuntu, and added build-essential and valgrind so you can use g++/gcc/gdb/valgrind."
 
-
 #adds gcc valgrind
 run apt-get install -y build-essential valgrind