diff --git a/pkgs/tools/networking/dnstop/default.nix b/pkgs/tools/networking/dnstop/default.nix
index c9e1b58d2d2c..00984a4ee70a 100644
--- a/pkgs/tools/networking/dnstop/default.nix
+++ b/pkgs/tools/networking/dnstop/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, libpcap, ncurses }:
 
 stdenv.mkDerivation {
-  name = "dnstop-20110502";
+  name = "dnstop-20121017";
 
   src = fetchurl {
-    url = http://dns.measurement-factory.com/tools/dnstop/src/dnstop-20110502.tar.gz;
-    sha256 = "0ra3xjf7dwvq5xm6qbqd2al35vigibihy46rsz1860qrn3wycy12";
+    url = http://dns.measurement-factory.com/tools/dnstop/src/dnstop-20121017.tar.gz;
+    sha256 = "1xjrz4dzwshfrlc226s390sbwd10j0pl2al09d62955b6xh2vvba";
   };
 
   buildInputs = [ libpcap ncurses ];