diff --git a/nixos/modules/services/web-servers/apache-httpd/mediawiki.nix b/nixos/modules/services/web-servers/apache-httpd/mediawiki.nix
index f1b5b675161b..423087991e13 100644
--- a/nixos/modules/services/web-servers/apache-httpd/mediawiki.nix
+++ b/nixos/modules/services/web-servers/apache-httpd/mediawiki.nix
@@ -72,11 +72,11 @@ let
 
   # Unpack Mediawiki and put the config file in its root directory.
   mediawikiRoot = pkgs.stdenv.mkDerivation rec {
-    name= "mediawiki-1.20.7";
+    name= "mediawiki-1.20.8";
 
     src = pkgs.fetchurl {
       url = "http://download.wikimedia.org/mediawiki/1.20/${name}.tar.gz";
-      sha256 = "0cdl2mq3nw1jymanlxn7pi3qbf5y5003q53kmc8dip73nvrwnfxm";
+      sha256 = "0yfmh5vnfbgpvicfqh7nh4hwdk4qbc6gfniv02vchkg5al0nn7ag";
     };
 
     skins = config.skins;