diff --git a/pkgs/servers/web-apps/moodle/default.nix b/pkgs/servers/web-apps/moodle/default.nix
index ec3fa2287b95..b765a95c3fda 100644
--- a/pkgs/servers/web-apps/moodle/default.nix
+++ b/pkgs/servers/web-apps/moodle/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, writeText }:
 
 let
-  version = "3.9";
+  version = "3.9.1";
   stableVersion = builtins.substring 0 2 (builtins.replaceStrings ["."] [""] version);
 in
 
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
 
   src = fetchurl {
     url = "https://download.moodle.org/stable${stableVersion}/${pname}-${version}.tgz";
-    sha256 = "1splsxdxzwf49zxrdb4q05fj60agqyzv0ikvk05gaf49qqd8rznz";
+    sha256 = "1ysnrk013gmc21ml3jwijvl16rx3p478a4vriy6h8hfli48460p9";
   };
 
   phpConfig = writeText "config.php" ''