diff --git a/pkgs/by-name/mo/models-dev/package.nix b/pkgs/by-name/mo/models-dev/package.nix
index 420159d0ee3f..6dfb3c037d1e 100644
--- a/pkgs/by-name/mo/models-dev/package.nix
+++ b/pkgs/by-name/mo/models-dev/package.nix
@@ -6,23 +6,14 @@
   nix-update-script,
   writableTmpDirAsHomeHook,
 }:
-
-let
-  models-dev-node-modules-hash = {
-    "aarch64-darwin" = "sha256-IM88XPfttZouN2DEtnWJmbdRxBs8wN7AZ1T28INJlBY=";
-    "aarch64-linux" = "sha256-brjdEEYBJ1R5pIkIHyOOmVieTJ0yUJEgxs7MtbzcKXo=";
-    "x86_64-darwin" = "sha256-aGUWZwySmo0ojOBF/PioZ2wp4NRwYyoaJuytzeGYjck=";
-    "x86_64-linux" = "sha256-Uajwvce9EO1UwmpkGrViOrxlm2R/VnnMK8WAiOiQOhY=";
-  };
-in
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "models-dev";
-  version = "0-unstable-2025-09-06";
+  version = "0-unstable-2025-09-19";
   src = fetchFromGitHub {
     owner = "sst";
     repo = "models.dev";
-    rev = "5ed40fe25f2ffd13c19936727a7763a982e0f924";
-    hash = "sha256-UsBsedOhLwW/8tfaxE7+d3dSY7YZB4M3YEGBhwNQHOM=";
+    rev = "bb40a42fb7178e1e563598924cfa36c43fcffb80";
+    hash = "sha256-0NBBOzsICb27SZ6Uj7apknCTcqPrhG9UUpBkiMiN6Jo=";
   };
 
   node_modules = stdenvNoCC.mkDerivation {
@@ -67,7 +58,14 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     # Required else we get errors that our fixed-output derivation references store paths
     dontFixup = true;
 
-    outputHash = models-dev-node-modules-hash.${stdenvNoCC.hostPlatform.system};
+    outputHash =
+      {
+        x86_64-linux = "sha256-Uajwvce9EO1UwmpkGrViOrxlm2R/VnnMK8WAiOiQOhY=";
+        aarch64-linux = "sha256-brjdEEYBJ1R5pIkIHyOOmVieTJ0yUJEgxs7MtbzcKXo=";
+        x86_64-darwin = "sha256-aGUWZwySmo0ojOBF/PioZ2wp4NRwYyoaJuytzeGYjck=";
+        aarch64-darwin = "sha256-IM88XPfttZouN2DEtnWJmbdRxBs8wN7AZ1T28INJlBY=";
+      }
+      .${stdenvNoCC.hostPlatform.system};
     outputHashAlgo = "sha256";
     outputHashMode = "recursive";
   };