diff --git a/Formula/multimarkdown.rb b/Formula/multimarkdown.rb
index 0528eceb7ff..0f2e53931b0 100644
--- a/Formula/multimarkdown.rb
+++ b/Formula/multimarkdown.rb
@@ -2,8 +2,8 @@ require 'formula'
 
 class Multimarkdown < Formula
   homepage 'http://fletcherpenney.net/multimarkdown/'
-  url 'https://github.com/fletcher/peg-multimarkdown/tarball/3.0'
-  md5 '607387dc346a71203f100564874294fe'
+  url 'https://github.com/fletcher/peg-multimarkdown/tarball/3.1b1'
+  md5 'fc09047d271828f068473114becd39d6'
   head 'https://github.com/fletcher/peg-multimarkdown.git', :branch => 'development'
 
   depends_on 'pkg-config' => :build