diff --git a/pkgs/development/python-modules/lmfit/default.nix b/pkgs/development/python-modules/lmfit/default.nix
index 16046208ea9a..87e201634e7b 100644
--- a/pkgs/development/python-modules/lmfit/default.nix
+++ b/pkgs/development/python-modules/lmfit/default.nix
@@ -17,14 +17,14 @@
 
 buildPythonPackage rec {
   pname = "lmfit";
-  version = "1.3.2";
+  version = "1.3.3";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-Mb7q4fAnwbjBTc1/LoSIqAt1+zied/ymd1Sb3C/ll7s=";
+    hash = "sha256-czIea4gfL2hiNXIaffwCr2uw8DCiXv62Zjj2KxxgU6E=";
   };
 
   postPatch = ''