diff --git a/dashboard/env/commit-watcher/Dockerfile b/dashboard/env/commit-watcher/Dockerfile
index 013bf4cd..dce074a5 100644
--- a/dashboard/env/commit-watcher/Dockerfile
+++ b/dashboard/env/commit-watcher/Dockerfile
@@ -4,8 +4,7 @@
 
 # Commit watcher for Go repos.
 
-# Wheezy has Mercurial 2.2.2 and we need Mercurial >= 2.8, sid has 3.1.
-FROM debian:sid
+FROM debian:wheezy
 MAINTAINER golang-dev <golang-dev@googlegroups.com>
 
 ENV DEBIAN_FRONTEND noninteractive
@@ -14,4 +13,4 @@ ADD /scripts/install-apt-deps.sh /scripts/
 RUN /scripts/install-apt-deps.sh
 
 ADD /scripts/build-commit-watcher.sh /scripts/
-RUN GO_REV=go1.4 WATCHER_REV=6735829fe0 /scripts/build-commit-watcher.sh && test -f /usr/local/bin/watcher
+RUN GO_REV=go1.4 WATCHER_REV=a54d0066172 /scripts/build-commit-watcher.sh && test -f /usr/local/bin/watcher