diff --git a/ubuntu/README.md b/ubuntu/README.md
index bad21f6f4..9632e0a7c 100644
--- a/ubuntu/README.md
+++ b/ubuntu/README.md
@@ -1,9 +1,9 @@
 # Supported tags and respective `Dockerfile` links
 
--	[`12.04.5`, `12.04`, `precise-20150924`, `precise` (*precise/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/e9338b6f9ec01801bd5cc75743efe04949d123cf/precise/Dockerfile)
--	[`14.04.3`, `14.04`, `trusty-20151001`, `trusty`, `latest` (*trusty/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/e9338b6f9ec01801bd5cc75743efe04949d123cf/trusty/Dockerfile)
--	[`15.04`, `vivid-20150930`, `vivid` (*vivid/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/e9338b6f9ec01801bd5cc75743efe04949d123cf/vivid/Dockerfile)
--	[`15.10`, `wily-20151006`, `wily` (*wily/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/e9338b6f9ec01801bd5cc75743efe04949d123cf/wily/Dockerfile)
+-	[`12.04.5`, `12.04`, `precise-20150924`, `precise` (*precise/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/50b3bf21537afb96d95ccb25996c7bceb16c38d8/precise/Dockerfile)
+-	[`14.04.3`, `14.04`, `trusty-20151009`, `trusty`, `latest` (*trusty/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/50b3bf21537afb96d95ccb25996c7bceb16c38d8/trusty/Dockerfile)
+-	[`15.04`, `vivid-20150930`, `vivid` (*vivid/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/50b3bf21537afb96d95ccb25996c7bceb16c38d8/vivid/Dockerfile)
+-	[`15.10`, `wily-20151009`, `wily` (*wily/Dockerfile*)](https://github.com/tianon/docker-brew-ubuntu-core/blob/50b3bf21537afb96d95ccb25996c7bceb16c38d8/wily/Dockerfile)
 
 For more information about this image and its history, please see [the relevant manifest file (`library/ubuntu`)](https://github.com/docker-library/official-images/blob/master/library/ubuntu). This image is updated via pull requests to [the `docker-library/official-images` GitHub repo](https://github.com/docker-library/official-images).