diff --git a/Formula/python3.rb b/Formula/python3.rb
index 02baac515de..16c2aa4a971 100644
--- a/Formula/python3.rb
+++ b/Formula/python3.rb
@@ -3,7 +3,7 @@ require 'formula'
 class Python3 < Formula
   homepage 'http://www.python.org/'
   url 'http://python.org/ftp/python/3.3.3/Python-3.3.3.tar.bz2'
-  sha1 ''
+  sha1 '6ff7d34427cbf7bf875e6a456850231e488118ca'
   VER='3.3'  # The <major>.<minor> is used so often.
 
   head 'http://hg.python.org/cpython', :using => :hg, :branch => VER