diff --git a/pkgs/development/libraries/java/smack/default.nix b/pkgs/development/libraries/java/smack/default.nix
index 0ccf525d57eb..d7a18ffa1a36 100644
--- a/pkgs/development/libraries/java/smack/default.nix
+++ b/pkgs/development/libraries/java/smack/default.nix
@@ -1,11 +1,11 @@
 {stdenv, fetchurl}:
 
 stdenv.mkDerivation {
-  name = "smack-3_0_4";
+  name = "smack-3_1_0";
   builder = ./builder.sh;
   
   src = fetchurl {
-    url = http://www.igniterealtime.org/downloadServlet?filename=smack/smack_3_0_4.tar.gz;
-    md5 = "a7eb7df35ed8ab959badd370f995c671";
+    url = http://www.igniterealtime.org/downloadServlet?filename=smack/smack_3_1_0.tar.gz;
+    sha256 = "02kn3i7py6ilnchz0yn4v2g0sh8msxcw61kankqrz2a65852i28i";
   };  
 }