diff --git a/pkgs/development/python-modules/energyzero/default.nix b/pkgs/development/python-modules/energyzero/default.nix
index 7b6150e46ec..21a14e2fff5 100644
--- a/pkgs/development/python-modules/energyzero/default.nix
+++ b/pkgs/development/python-modules/energyzero/default.nix
@@ -13,7 +13,7 @@
 
 buildPythonPackage rec {
   pname = "energyzero";
-  version = "0.4.1";
+  version = "0.4.2";
   format = "pyproject";
 
   disabled = pythonOlder "3.9";
@@ -22,7 +22,7 @@ buildPythonPackage rec {
     owner = "klaasnicolaas";
     repo = "python-energyzero";
     rev = "refs/tags/v${version}";
-    hash = "sha256-qBtsNqmGLCUGTYJ8iPL/Ie3yGX7Ocs4e+yp0tRAhK8g=";
+    hash = "sha256-sqkpbvsMd/8y6QSrMZHJeHl9GTes8TUoZ7RKePJsREs=";
   };
 
   postPatch = ''