diff --git a/pkgs/development/python-modules/firedrake-fiat/default.nix b/pkgs/development/python-modules/firedrake-fiat/default.nix
index 10f348818690..412077919710 100644
--- a/pkgs/development/python-modules/firedrake-fiat/default.nix
+++ b/pkgs/development/python-modules/firedrake-fiat/default.nix
@@ -11,18 +11,19 @@
   symengine,
   fenics-ufl,
   pytestCheckHook,
+  nix-update-script,
 }:
 
 buildPythonPackage rec {
-  pname = "firdrake-fiat";
-  version = "2025.4.0";
+  pname = "firedrake-fiat";
+  version = "2025.4.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "firedrakeproject";
     repo = "fiat";
     tag = version;
-    hash = "sha256-i+hDpeg4SYRF7OK6uh1p1gVscyuJ4FjmyUUiLR7P7/A=";
+    hash = "sha256-rN2JPXsauyBF6X2378kOmqHNB+1EqxiGnDaVoEXy4vw=";
   };
 
   postPatch =
@@ -62,6 +63,18 @@ buildPythonPackage rec {
     "--skip-download"
   ];
 
+  passthru = {
+    # python updater script sets the wrong tag
+    skipBulkUpdate = true;
+
+    updateScript = nix-update-script {
+      extraArgs = [
+        "--version-regex"
+        "([0-9.]+)"
+      ];
+    };
+  };
+
   meta = {
     description = "FInite element Automatic Tabulator";
     homepage = "http://fenics-fiat.readthedocs.org/";
diff --git a/pkgs/development/python-modules/firedrake/default.nix b/pkgs/development/python-modules/firedrake/default.nix
index d46edecae34f..645bf8ae82ff 100644
--- a/pkgs/development/python-modules/firedrake/default.nix
+++ b/pkgs/development/python-modules/firedrake/default.nix
@@ -43,9 +43,10 @@
   mpiCheckPhaseHook,
   writableTmpDirAsHomeHook,
 
-  # passthru.tests
+  # passthru
   firedrake,
   mpich,
+  nix-update-script,
 }:
 let
   firedrakePackages = lib.makeScope newScope (self: {
@@ -173,6 +174,13 @@ buildPythonPackage rec {
     # python updater script sets the wrong tag
     skipBulkUpdate = true;
 
+    updateScript = nix-update-script {
+      extraArgs = [
+        "--version-regex"
+        "([0-9.]+)"
+      ];
+    };
+
     tests = lib.optionalAttrs stdenv.hostPlatform.isLinux {
       mpich = firedrake.override {
         petsc4py = petsc4py.override { mpi = mpich; };