diff --git a/modules/nixos/homeassistant/services/esphome/default.nix b/modules/nixos/homeassistant/services/esphome/default.nix
index 63d9d27..2ea4144 100644
--- a/modules/nixos/homeassistant/services/esphome/default.nix
+++ b/modules/nixos/homeassistant/services/esphome/default.nix
@@ -9,12 +9,15 @@ with lib;
 let
   cfg = config.${namespace}.services.home-assistant;
 
-  # ESPHome with littlefs-python and fatfs added to PYTHONPATH so PlatformIO's
+  # ESPHome with littlefs-python and fatfs-ng added to PYTHONPATH so PlatformIO's
   # espressif32 platform builder can import them (needed for LittleFS/FAT support).
+  # fatfs-ng is the correct package: it installs under the 'fatfs' namespace and
+  # provides create_extended_partition and ESP32 wear-leveling support required by
+  # pioarduino's platform builder (penv_setup.py specifies "fatfs-ng>=0.1.14").
   esphomeWithLittlefs = pkgs.esphome.overridePythonAttrs (oldAttrs: {
     makeWrapperArgs = (oldAttrs.makeWrapperArgs or [ ]) ++ [
       "--prefix PYTHONPATH : ${pkgs.${namespace}.littlefs-python}/${pkgs.python3.sitePackages}"
-      "--prefix PYTHONPATH : ${pkgs.${namespace}.fatfs}/${pkgs.python3.sitePackages}"
+      "--prefix PYTHONPATH : ${pkgs.${namespace}.fatfs-ng}/${pkgs.python3.sitePackages}"
     ];
   });
 in
diff --git a/packages/python/fatfs/default.nix b/packages/python/fatfs-ng/default.nix
similarity index 63%
rename from packages/python/fatfs/default.nix
rename to packages/python/fatfs-ng/default.nix
index 56d71bf..bac7fae 100644
--- a/packages/python/fatfs/default.nix
+++ b/packages/python/fatfs-ng/default.nix
@@ -4,13 +4,14 @@
 }:
 
 python3Packages.buildPythonPackage rec {
-  pname = "fatfs";
-  version = "0.1.2";
+  pname = "fatfs-ng";
+  version = "0.1.15";
   format = "setuptools";
 
   src = python3Packages.fetchPypi {
-    inherit pname version;
-    hash = "sha256-gkx2ebxtJcRitGX68Xf4EAlxHP+b8wAbKpH5xb+lxYk=";
+    pname = "fatfs_ng";
+    inherit version;
+    hash = "sha256-Uwgr6kzX6e5mHUokWEr0tjDxTK1giWrGmyMbrM91X4o=";
   };
 
   # wrapper.c is pre-generated in the sdist; Cython is not needed at build time.
@@ -27,11 +28,12 @@ python3Packages.buildPythonPackage rec {
 
   doCheck = false;
 
+  # fatfs-ng installs under the 'fatfs' namespace (ext_package='fatfs')
   pythonImportsCheck = [ "fatfs" ];
 
   meta = with lib; {
-    description = "Python bindings for ChaN's FatFS, the generic FAT/exFAT filesystem module";
-    homepage = "https://pypi.org/project/fatfs/";
+    description = "Enhanced Python wrapper around ChaN's FatFS library with ESP32 wear-leveling support";
+    homepage = "https://github.com/Jason2866/pyfatfs";
     license = licenses.mit;
     maintainers = [ ];
   };