diff --git a/pkgs/applications/networking/instant-messengers/mcabber/default.nix b/pkgs/applications/networking/instant-messengers/mcabber/default.nix
index 17ad6c25da77..ef6ce6076d94 100644
--- a/pkgs/applications/networking/instant-messengers/mcabber/default.nix
+++ b/pkgs/applications/networking/instant-messengers/mcabber/default.nix
@@ -4,11 +4,11 @@
 
 stdenv.mkDerivation rec {
   name = "mcabber-${version}";
-  version = "0.10.3";
+  version = "1.0.0";
 
   src = fetchurl {
     url = "http://mcabber.com/files/mcabber-${version}.tar.bz2";
-    sha256 = "0vgsqw6yn0lzzcnr4fql4ycgf3gwqj6w4p0l4nqnvhkc94w62ikp";
+    sha256 = "0ckh2l5fbnykzbvdrqjwd1ppalaifb79nnizh8kra2sy76xbqxjl";
   };
 
   buildInputs = [ openssl ncurses pkgconfig glib loudmouth libotr gpgme ];