diff --git a/pkgs/applications/misc/calibre/default.nix b/pkgs/applications/misc/calibre/default.nix
index c2a48ffb6e1..780c96d9ec8 100644
--- a/pkgs/applications/misc/calibre/default.nix
+++ b/pkgs/applications/misc/calibre/default.nix
@@ -4,11 +4,11 @@
 }:
 
 stdenv.mkDerivation rec {
-  name = "calibre-1.2.0";
+  name = "calibre-1.4.0";
 
   src = fetchurl {
     url = "mirror://sourceforge/calibre/${name}.tar.xz";
-    sha256 = "0h6afn57pw3rb03ffbnss774gdx7ldirr43hbhzsc2k2h7lxnzyj";
+    sha256 = "0hszxjyvw75b75pzr8w5xfgchx3ksw7ziwa3skrjdj500bypmy3y";
   };
 
   inherit python;