diff --git a/pkgs/servers/web-apps/mediawiki/default.nix b/pkgs/servers/web-apps/mediawiki/default.nix
index 05175d802307..1e0fe00c4974 100644
--- a/pkgs/servers/web-apps/mediawiki/default.nix
+++ b/pkgs/servers/web-apps/mediawiki/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "mediawiki";
-  version = "1.38.2";
+  version = "1.38.4";
 
   src = fetchurl {
     url = "https://releases.wikimedia.org/mediawiki/${lib.versions.majorMinor version}/mediawiki-${version}.tar.gz";
-    sha256 = "sha256-aX6zvb8x0JgQBmEzzHtcotlinHfuphzhagW8mXA9U6Y=";
+    sha256 = "sha256-0rOjLUKkHrZYOPwwh4MH99YzA8NKfoYkEQVag7UCtJc=";
   };
 
   postPatch = ''