diff --git a/packages/nextcloud-mcp-server/package.nix b/packages/nextcloud-mcp-server/package.nix
index 881a64f..9380066 100644
--- a/packages/nextcloud-mcp-server/package.nix
+++ b/packages/nextcloud-mcp-server/package.nix
@@ -131,7 +131,7 @@ python3Packages.buildPythonApplication rec {
     hash = "sha256-IDTSGsHQ8cCFvgSO7pDbSSHVNV0OIjjoEN9ZfkaPAvk=";
   };
 
-  build-system = [ python3Packages.hatchling ];
+  build-system = [ python3Packages.uv-build ];
 
   dependencies = with python3Packages; [
     mcp httpx pillow icalendar pydantic click caldav pyjwt