diff --git a/Casks/zotero.rb b/Casks/zotero.rb
index 6fee9c3f401..11e659d6879 100644
--- a/Casks/zotero.rb
+++ b/Casks/zotero.rb
@@ -1,7 +1,7 @@
 class Zotero < Cask
-  url 'http://download.zotero.org/standalone/4.0.8/Zotero-4.0.8.dmg'
+  url 'http://download.zotero.org/standalone/4.0.9/Zotero-4.0.9.dmg'
   homepage 'http://www.zotero.org/'
-  version '4.0.8'
-  sha1 '1ceedd019fdec48621910d80ea893ff0d75404df'
+  version '4.0.9'
+  sha1 'e048b690cbd25e8dd01ce17ff0f438ff70f6284d'
   link 'Zotero.app'
 end