diff --git a/pkgs/development/python-modules/zinvolt/default.nix b/pkgs/development/python-modules/zinvolt/default.nix
index ff9c7aaee82b..0690f318b7e0 100644
--- a/pkgs/development/python-modules/zinvolt/default.nix
+++ b/pkgs/development/python-modules/zinvolt/default.nix
@@ -16,14 +16,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "zinvolt";
-  version = "0.4.1";
+  version = "0.4.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "joostlek";
     repo = "python-zinvolt";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-b6NWEk2sn0LpCd2qTpcU4pVH01FzMNHM6ybQU24mN1c=";
+    hash = "sha256-psZ9/V/bBGGvKdKxuvncJzJOB1jolYTeNw2XOJmxfco=";
   };
 
   build-system = [ poetry-core ];