diff --git a/Formula/graphicsmagick.rb b/Formula/graphicsmagick.rb
index b9761feda0..588ba56c2f 100644
--- a/Formula/graphicsmagick.rb
+++ b/Formula/graphicsmagick.rb
@@ -1,8 +1,8 @@
 class Graphicsmagick < Formula
   desc "Image processing tools collection"
   homepage "http://www.graphicsmagick.org/"
-  url "https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick/1.3.27/GraphicsMagick-1.3.27.tar.xz"
-  sha256 "d03278d2790efc1dc72309f85a539810d2a81deb47932f7e6720d09ac72d0367"
+  url "https://downloads.sourceforge.net/project/graphicsmagick/graphicsmagick/1.3.28/GraphicsMagick-1.3.28.tar.xz"
+  sha256 "942a68a9a8a5af6f682b896fd4f0ad617d8b49907e474acfe59549956bcc994a"
   head "http://hg.code.sf.net/p/graphicsmagick/code", :using => :hg
 
   bottle do