diff --git a/pkgs/development/perl-modules/lwp-test-with-localhost.patch b/pkgs/development/perl-modules/lwp-test-with-localhost.patch
deleted file mode 100644
index 25b96796d23..00000000000
--- a/pkgs/development/perl-modules/lwp-test-with-localhost.patch
+++ /dev/null
@@ -1,75 +0,0 @@
-From 2d7a479b39bb20a0d61f067ba6c2df92117fcb8c Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
-Date: Wed, 23 Apr 2014 12:45:38 +0200
-Subject: [PATCH] Connect to localhost instead of hostname
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The hostname does not have to be resolvable nor reachable. It's just
-a machine name.
-
-Signed-off-by: Petr Písař <ppisar@redhat.com>
----
- t/local/http.t   | 2 +-
- t/robot/ua-get.t | 2 +-
- t/robot/ua.t     | 2 +-
- talk-to-ourself  | 3 +--
- 4 files changed, 4 insertions(+), 5 deletions(-)
-
-diff --git a/t/local/http.t b/t/local/http.t
-index 779cc21..534b4c8 100644
---- a/t/local/http.t
-+++ b/t/local/http.t
-@@ -20,7 +20,7 @@ if ($D eq 'daemon') {
- 
-     require HTTP::Daemon;
- 
--    my $d = HTTP::Daemon->new(Timeout => 10);
-+    my $d = HTTP::Daemon->new(Timeout => 10, LocalAddr => 'localhost');
- 
-     print "Please to meet you at: <URL:", $d->url, ">\n";
-     open(STDOUT, $^O eq 'VMS'? ">nl: " : ">/dev/null");
-diff --git a/t/robot/ua-get.t b/t/robot/ua-get.t
-index 5754c4b..bf24589 100644
---- a/t/robot/ua-get.t
-+++ b/t/robot/ua-get.t
-@@ -19,7 +19,7 @@ if ($D eq 'daemon') {
- 
-     require HTTP::Daemon;
- 
--    my $d = new HTTP::Daemon Timeout => 10;
-+    my $d = new HTTP::Daemon Timeout => 10, LocalAddr => 'localhost';
- 
-     print "Please to meet you at: <URL:", $d->url, ">\n";
-     open(STDOUT, $^O eq 'MSWin32' ?  ">nul" : $^O eq 'VMS' ? ">NL:"  : ">/dev/null");
-diff --git a/t/robot/ua.t b/t/robot/ua.t
-index 21ad5c8..11fafa8 100644
---- a/t/robot/ua.t
-+++ b/t/robot/ua.t
-@@ -19,7 +19,7 @@ if ($D eq 'daemon') {
- 
-     require HTTP::Daemon;
- 
--    my $d = new HTTP::Daemon Timeout => 10;
-+    my $d = new HTTP::Daemon Timeout => 10, LocalAddr => 'localhost';
- 
-     print "Please to meet you at: <URL:", $d->url, ">\n";
-     open(STDOUT, $^O eq 'MSWin32' ?  ">nul" : $^O eq 'VMS' ? ">NL:"  : ">/dev/null");
-diff --git a/talk-to-ourself b/talk-to-ourself
-index 6c0257a..b4acda2 100644
---- a/talk-to-ourself
-+++ b/talk-to-ourself
-@@ -9,8 +9,7 @@ require IO::Socket;
- 
- if (@ARGV >= 2 && $ARGV[0] eq "--port") {
-     my $port = $ARGV[1];
--    require Sys::Hostname;
--    my $host = Sys::Hostname::hostname();
-+    my $host = 'localhost';
-     if (my $socket = IO::Socket::INET->new(PeerAddr => "$host:$port", Timeout => 5)) {
- 	require IO::Select;
- 	if (IO::Select->new($socket)->can_read(1)) {
--- 
-1.9.0
-
diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 0e2581b6a29..89fad8071a6 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -6900,13 +6900,12 @@ let self = _self // overrides; _self = with self; {
     };
   };
 
-  LWP = buildPerlPackage rec {
-    name = "libwww-perl-6.13";
+  "LWP" = buildPerlPackage rec {
+    name = "libwww-perl-6.15";
     src = fetchurl {
       url = "mirror://cpan/authors/id/E/ET/ETHER/${name}.tar.gz";
-      sha256 = "1cpqjl59viw50bnbdyn8xzrwzg7g54b2rszw0fifacqrppp17gaz";
+      sha256 = "6f349d45c21b1ec0501c4437dfcb70570940e6c3d5bff783bd91d4cddead8322";
     };
-    patches = [ ../development/perl-modules/lwp-test-with-localhost.patch ];
     propagatedBuildInputs = [ EncodeLocale FileListing HTMLParser HTTPCookies HTTPDaemon HTTPDate HTTPMessage HTTPNegotiate LWPMediaTypes NetHTTP URI WWWRobotRules ];
     meta = with stdenv.lib; {
       description = "The World-Wide Web library for Perl";