diff --git a/pkgs/applications/networking/sniffers/wireshark/default.nix b/pkgs/applications/networking/sniffers/wireshark/default.nix
index 38270f33ba2..b0e9347a764 100644
--- a/pkgs/applications/networking/sniffers/wireshark/default.nix
+++ b/pkgs/applications/networking/sniffers/wireshark/default.nix
@@ -1,10 +1,10 @@
 {stdenv, fetchurl, perl, pkgconfig, gtk, libpcap, flex, bison}:
 
 stdenv.mkDerivation {
-  name = "wireshark-1.3.4";
+  name = "wireshark-1.4.0rc2";
   src = fetchurl {
-    url = http://media-2.cacetech.com/wireshark/src/wireshark-1.3.4.tar.bz2;
-    sha256 = "00pyr3izg5dg8kr4sayp0fq8q360syfhs2nvj6b4ff1mdal7ra3x";
+    url = "http://www.wireshark.org/download/src/wireshark-1.4.0rc2.tar.bz2";
+    sha256 = "16fd00e1e120c7f57a8c5c8532f26d77a14ca254c2cb2c4816ec9a0499744f79";
   };
   configureFlags = "--with-pcap=${libpcap}";
   buildInputs = [perl pkgconfig gtk libpcap flex bison];