diff --git a/pkgs/os-specific/linux/tp_smapi/default.nix b/pkgs/os-specific/linux/tp_smapi/default.nix
index 0c80a69f4888..0e27fb45b547 100644
--- a/pkgs/os-specific/linux/tp_smapi/default.nix
+++ b/pkgs/os-specific/linux/tp_smapi/default.nix
@@ -2,37 +2,20 @@
   stdenv,
   lib,
   fetchFromGitHub,
-  fetchpatch,
   kernel,
-  writeScript,
-  coreutils,
-  gnugrep,
-  jq,
-  curl,
-  common-updater-scripts,
-  runtimeShell,
 }:
 
 stdenv.mkDerivation rec {
   name = "tp_smapi-${version}-${kernel.version}";
-  version = "0.43";
+  version = "0.44-unstable-2025-05-26";
 
   src = fetchFromGitHub {
     owner = "linux-thinkpad";
     repo = "tp_smapi";
-    rev = "tp-smapi/${version}";
-    sha256 = "1rjb0njckczc2mj05cagvj0lkyvmyk6bw7wkiinv81lw8m90g77g";
+    rev = "a6122c0840c36bf232250afd1da30aaedaf24910";
+    hash = "sha256-4bVyhTVj29ni9hduN20+VEl5/N0BAoMNMBw+k4yl8Y0=";
   };
 
-  patches = [
-    # update DEFINE_SEMAPHORE usage for linux 6.4+
-    # https://github.com/linux-thinkpad/tp_smapi/pull/45
-    (fetchpatch {
-      url = "https://github.com/linux-thinkpad/tp_smapi/commit/0c3398b1acf2a2cabd9cee91dc3fe3d35805fa8b.patch";
-      hash = "sha256-J/WvijrpHGwFOZMMxnHdNin5eh8vViTcNb4nwsCqsLs=";
-    })
-  ];
-
   nativeBuildInputs = kernel.moduleBuildDependencies;
 
   hardeningDisable = [ "pic" ];
@@ -53,19 +36,6 @@ stdenv.mkDerivation rec {
 
   enableParallelBuilding = true;
 
-  passthru.updateScript = import ./update.nix {
-    inherit
-      lib
-      writeScript
-      coreutils
-      gnugrep
-      jq
-      curl
-      common-updater-scripts
-      runtimeShell
-      ;
-  };
-
   meta = {
     description = "IBM ThinkPad hardware functions driver";
     homepage = "https://github.com/linux-thinkpad/tp_smapi";
diff --git a/pkgs/os-specific/linux/tp_smapi/update.nix b/pkgs/os-specific/linux/tp_smapi/update.nix
deleted file mode 100644
index 8b6fde3c0eaa..000000000000
--- a/pkgs/os-specific/linux/tp_smapi/update.nix
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  lib,
-  writeScript,
-  coreutils,
-  curl,
-  gnugrep,
-  jq,
-  common-updater-scripts,
-  runtimeShell,
-}:
-
-writeScript "update-tp_smapi" ''
-  #!${runtimeShell}
-  PATH=${
-    lib.makeBinPath [
-      common-updater-scripts
-      coreutils
-      curl
-      gnugrep
-      jq
-    ]
-  }
-
-  tags=`curl -s https://api.github.com/repos/evgeni/tp_smapi/tags`
-  latest_tag=`echo $tags | jq -r '.[] | .name' | grep -oP "^tp-smapi/\K.*" | sort --version-sort | tail -1`
-
-  update-source-version linuxPackages.tp_smapi "$latest_tag"
-''