1 files changed, 6 insertions, 2 deletions
diff --git a/pkgs/servers/squid/4.nix b/pkgs/servers/squid/4.nix
index f0429475be27..4a4502a69393 100644
--- a/pkgs/servers/squid/4.nix
+++ b/pkgs/servers/squid/4.nix
@@ -2,17 +2,21 @@
 , expat, libxml2, openssl }:
 
 stdenv.mkDerivation rec {
-  name = "squid-4.0.21";
+  name = "squid-4.0.23";
 
   src = fetchurl {
     url = "http://www.squid-cache.org/Versions/v4/${name}.tar.xz";
-    sha256 = "0cwfj3qpl72k5l1h2rvkv1xg0720rifk4wcvi49z216hznyqwk8m";
+    sha256 = "0a8g0zs3xayfkxl8maq823b14lckvh9d5lf7ryh9rx303xh1mdqq";
   };
 
   buildInputs = [
     perl openldap db cyrus_sasl expat libxml2 openssl
   ] ++ stdenv.lib.optionals stdenv.isLinux [ libcap pam ];
 
+  prePatch = ''
+    substituteInPlace configure --replace "/usr/local/include/libxml2" "${libxml2.dev}/include/libxml2"
+  '';
+
   configureFlags = [
     "--enable-ipv6"
     "--disable-strict-error-checking"