diff --git a/src/stage0.txt b/src/stage0.txt
index 4fbd70835dd2b..561e9e1d824e7 100644
--- a/src/stage0.txt
+++ b/src/stage0.txt
@@ -12,5 +12,5 @@
 # tarball for a stable release you'll likely see `1.x.0-$date` where `1.x.0` was
 # released on `$date`
 
-rustc: beta-2016-12-16
+rustc: beta-2016-12-20
 cargo: nightly-2016-11-16