diff --git a/pkgs/servers/web-apps/mediawiki/default.nix b/pkgs/servers/web-apps/mediawiki/default.nix
index e9b8c01614e8..7994d81f97a7 100644
--- a/pkgs/servers/web-apps/mediawiki/default.nix
+++ b/pkgs/servers/web-apps/mediawiki/default.nix
@@ -1,12 +1,12 @@
-{ lib, stdenv, fetchurl, writeText }:
+{ lib, stdenv, fetchurl, writeText, nixosTests }:
 
 stdenv.mkDerivation rec {
   pname = "mediawiki";
-  version = "1.39.1";
+  version = "1.39.2";
 
   src = fetchurl {
     url = "https://releases.wikimedia.org/mediawiki/${lib.versions.majorMinor version}/mediawiki-${version}.tar.gz";
-    sha256 = "sha256-3ew/kOHnsaxmgZF4yoEDfT+AhNxXfUq3cypLj5gNhfk=";
+    sha256 = "sha256-3bUdIooZymjNiHHYUBdfa+9Gh0R27RRm8BXPmEbZx6U=";
   };
 
   postPatch = ''
@@ -29,6 +29,8 @@ stdenv.mkDerivation rec {
     runHook postInstall
   '';
 
+  passthru.tests.mediawiki = nixosTests.mediawiki;
+
   meta = with lib; {
     description = "The collaborative editing software that runs Wikipedia";
     license = licenses.gpl2Plus;