diff --git a/pkgs/development/python-modules/pysigma/default.nix b/pkgs/development/python-modules/pysigma/default.nix
index 89bea0d0dc9a..be35230dbd6b 100644
--- a/pkgs/development/python-modules/pysigma/default.nix
+++ b/pkgs/development/python-modules/pysigma/default.nix
@@ -11,7 +11,7 @@
 
 buildPythonPackage rec {
   pname = "pysigma";
-  version = "0.4.1";
+  version = "0.4.2";
   format = "pyproject";
 
   disabled = pythonOlder "3.8";
@@ -20,7 +20,7 @@ buildPythonPackage rec {
     owner = "SigmaHQ";
     repo = "pySigma";
     rev = "v${version}";
-    hash = "sha256-egyzeniid2PZZQ6hsd44W+YURI8uGaXvDMuhNIXUqO0=";
+    hash = "sha256-0k6m86RQoP4QTuxmCWBpxiGqaJt3alOLS5BAuOFwdb4=";
   };
 
   nativeBuildInputs = [