diff --git a/pkgs/tools/networking/dnsmasq/default.nix b/pkgs/tools/networking/dnsmasq/default.nix
index 4ae571f99e0..8883334fe6d 100644
--- a/pkgs/tools/networking/dnsmasq/default.nix
+++ b/pkgs/tools/networking/dnsmasq/default.nix
@@ -1,11 +1,11 @@
 { pkgconfig, dbus_libs, nettle, stdenv, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "dnsmasq-2.72";
+  name = "dnsmasq-2.73";
 
   src = fetchurl {
     url = "http://www.thekelleys.org.uk/dnsmasq/${name}.tar.xz";
-    sha256 = "1c80hq09hfm8cp5pirfb8wdlc7dqkp7zzmbmdaradcvlblzx42vx";
+    sha256 = "1xnqfaw2l78f4zw4z9sgr9nl9yc233gxc3sd7hxapz2k7q883zqb";
   };
 
   # Can't rely on make flags because of space in one of the parameters