diff --git a/pkgs/development/python-modules/pyvesync/default.nix b/pkgs/development/python-modules/pyvesync/default.nix
index da98cf71ea0d..5e2623c41826 100644
--- a/pkgs/development/python-modules/pyvesync/default.nix
+++ b/pkgs/development/python-modules/pyvesync/default.nix
@@ -11,16 +11,16 @@
   setuptools,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "pyvesync";
-  version = "3.4.1";
+  version = "3.4.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "webdjoe";
     repo = "pyvesync";
-    tag = version;
-    hash = "sha256-fruuFt7Zb5ZDX8MmEXB4rypuYON3UG50mExnMpMQct4=";
+    tag = finalAttrs.version;
+    hash = "sha256-pJv5CMsM82ZUfc9ZuuAut+wHp2pMHOeOqMcH1jg3uRs=";
   };
 
   build-system = [ setuptools ];
@@ -43,8 +43,8 @@ buildPythonPackage rec {
   meta = {
     description = "Python library to manage Etekcity Devices and Levoit Air Purifier";
     homepage = "https://github.com/webdjoe/pyvesync";
-    changelog = "https://github.com/webdjoe/pyvesync/releases/tag/${src.tag}";
+    changelog = "https://github.com/webdjoe/pyvesync/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ fab ];
   };
-}
+})