diff --git a/pkgs/servers/web-apps/mediawiki/default.nix b/pkgs/servers/web-apps/mediawiki/default.nix
index 964baf96f827..43f3f399b4e1 100644
--- a/pkgs/servers/web-apps/mediawiki/default.nix
+++ b/pkgs/servers/web-apps/mediawiki/default.nix
@@ -2,11 +2,11 @@
 
 stdenvNoCC.mkDerivation rec {
   pname = "mediawiki";
-  version = "1.41.1";
+  version = "1.42.1";
 
   src = fetchurl {
     url = "https://releases.wikimedia.org/mediawiki/${lib.versions.majorMinor version}/mediawiki-${version}.tar.gz";
-    hash = "sha256-TguqlTuF6U0xBAyyUSCrxgb6hpsuMxJr37t/xhPoxLI=";
+    hash = "sha256-7IevlaNd0Jw01S4CeVZSoDCrcpVeQx8IynIqc3N+ulM=";
   };
 
   postPatch = ''