diff --git a/pkgs/by-name/et/etesync-dav/package.nix b/pkgs/by-name/et/etesync-dav/package.nix
index 8f88134a4c11..1044c47c1725 100644
--- a/pkgs/by-name/et/etesync-dav/package.nix
+++ b/pkgs/by-name/et/etesync-dav/package.nix
@@ -8,14 +8,14 @@
 }:
 python3Packages.buildPythonApplication rec {
   pname = "etesync-dav";
-  version = "0.34.0";
-  format = "pyproject";
+  version = "0.35.0";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "etesync";
     repo = "etesync-dav";
     tag = "v${version}";
-    hash = "sha256-+rNqyksOmDUh0OuvgEDWv6tuZQkn1gizz35Ptr6izos=";
+    hash = "sha256-CD02nuA9GD/oe7mjExUHIftkPxM1pZQKyDalXSoOhXY=";
   };
 
   build-system = with python3Packages; [ setuptools ];