diff --git a/Formula/checkstyle.rb b/Formula/checkstyle.rb
index 351db4fabb..ba175bb998 100644
--- a/Formula/checkstyle.rb
+++ b/Formula/checkstyle.rb
@@ -2,11 +2,11 @@ require 'formula'
 
 class Checkstyle < Formula
   homepage 'http://checkstyle.sourceforge.net/'
-  url 'http://sourceforge.net/projects/checkstyle/files/checkstyle/5.5/checkstyle-5.5-bin.tar.gz'
-  sha1 '757f89f0bb6148718904577d230a9b4f8221b03c'
+  url 'http://sourceforge.net/projects/checkstyle/files/checkstyle/5.6/checkstyle-5.6-bin.tar.gz'
+  sha1 'cf08ac75aedddcd3a8d1f27fcbbb6095b0d1d5e3'
 
   def install
-    libexec.install 'checkstyle-5.5-all.jar', 'sun_checks.xml'
+    libexec.install 'checkstyle-5.6-all.jar', 'sun_checks.xml'
     bin.write_jar_script libexec/'checkstyle-5.5-all.jar', 'checkstyle'
   end