diff --git a/pkgs/tools/networking/haproxy/default.nix b/pkgs/tools/networking/haproxy/default.nix
index 5a634ffec66..58e238c3c02 100644
--- a/pkgs/tools/networking/haproxy/default.nix
+++ b/pkgs/tools/networking/haproxy/default.nix
@@ -1,12 +1,12 @@
 { stdenv, pkgs, fetchurl }:
 
 stdenv.mkDerivation rec {
-  version = "1.4.25";
+  version = "1.5.11";
   name = "haproxy-${version}";
 
   src = fetchurl {
-    url = "http://haproxy.1wt.eu/download/1.4/src/${name}.tar.gz";
-    sha256 = "0qnvj6kbnrrc69nsp2dn5iv2z79adzkcgqssnk30iwvvwg0qwh44";
+    url = "http://haproxy.1wt.eu/download/1.5/src/${name}.tar.gz";
+    sha256 = "1gwkyy06c8bw5vcjv82hai554zrd415jjsb1iafg01c4k1ia8nlb";
   };
 
   buildInputs = [ ];