diff --git a/pkgs/by-name/li/libretroPackages/cores/mame.nix b/pkgs/by-name/li/libretroPackages/cores/mame.nix
index 70e32ada318d..e01e337e7bdb 100644
--- a/pkgs/by-name/li/libretroPackages/cores/mame.nix
+++ b/pkgs/by-name/li/libretroPackages/cores/mame.nix
@@ -9,13 +9,13 @@
 }:
 mkLibretroCore {
   core = "mame";
-  version = "0-unstable-2026-08-20";
+  version = "0-unstable-2026-09-04";
 
   src = fetchFromGitHub {
     owner = "libretro";
     repo = "mame";
-    rev = "24cffe763621b164fc10be2ae3660f140be25182";
-    hash = "sha256-Gfdpt2R83SOZsD1iPYk6IWPmTEjmQdfdb2xMXSufF6c=";
+    rev = "4fc9a9312baaf34963847f884961ad9793fbbc1d";
+    hash = "sha256-X/5zagYp2ma2HkIG46ttDrcElQ8695FvvKeDb6EDOvY=";
     fetchSubmodules = true;
   };