diff --git a/pkgs/development/python-modules/jsonargparse/default.nix b/pkgs/development/python-modules/jsonargparse/default.nix
index 2171f28e2aa7..39bae50617f0 100644
--- a/pkgs/development/python-modules/jsonargparse/default.nix
+++ b/pkgs/development/python-modules/jsonargparse/default.nix
@@ -24,7 +24,7 @@
 
 buildPythonPackage rec {
   pname = "jsonargparse";
-  version = "4.41.0";
+  version = "4.42.0";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -33,7 +33,7 @@ buildPythonPackage rec {
     owner = "omni-us";
     repo = "jsonargparse";
     tag = "v${version}";
-    hash = "sha256-uNgtxQuAkOB651lbPPWQg0p4T8G1dgFbx/EyO/sJSjs=";
+    hash = "sha256-M6CEUDf6JcjZWRBoHfVyFmX9ZV8xsB7illoBk0YzZs0=";
   };
 
   build-system = [ setuptools ];