diff --git a/pkgs/applications/emulators/retroarch/hashes.json b/pkgs/applications/emulators/retroarch/hashes.json
index 687fce52b95b..7bddb916756d 100644
--- a/pkgs/applications/emulators/retroarch/hashes.json
+++ b/pkgs/applications/emulators/retroarch/hashes.json
@@ -318,10 +318,10 @@
         "src": {
             "owner": "libretro",
             "repo": "fmsx-libretro",
-            "rev": "cf97a3c6da07d5f8e98c90c907ad987ffea432e0",
-            "hash": "sha256-mPgmt05XDnB+eIWtOpBfZ37Cz24VBei1lLLaYsJNeAA="
+            "rev": "9eb5f25df5397212a3e3088ca1a64db0740bbe5f",
+            "hash": "sha256-Pac1tQvPxYETU+fYU17moBHGfjNtzZiOsOms1uFQAmE="
         },
-        "version": "unstable-2024-06-28"
+        "version": "unstable-2024-10-21"
     },
     "freeintv": {
         "fetcher": "fetchFromGitHub",