diff --git a/pkgs/development/python-modules/regress/default.nix b/pkgs/development/python-modules/regress/default.nix
index e790699314d1..1bd88df72ee0 100644
--- a/pkgs/development/python-modules/regress/default.nix
+++ b/pkgs/development/python-modules/regress/default.nix
@@ -9,13 +9,13 @@
 
 buildPythonPackage rec {
   pname = "regress";
-  version = "0.4.5";
+  version = "2025.3.1";
 
   format = "pyproject";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-tCrFBjkK6obzaYkYiJ3WQ5yi3KkC86/cbXCSnRRGZu8=";
+    hash = "sha256-x7qNFuUFPXc/SIZkwQGAmJ538kIotEbsmF7XbjrAWQE=";
   };
 
   nativeBuildInputs = with rustPlatform; [
@@ -28,7 +28,7 @@ buildPythonPackage rec {
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit src;
     name = "${pname}-${version}";
-    hash = "sha256-I6aUSGeosVYrFcHw0w6hprIL++c7ocYEorrQhe4ib+Y=";
+    hash = "sha256-B652Bfanw51e+U6rHukWtfdr7bjoWDUx/nUczDwyzZk=";
   };
 
   meta = with lib; {