diff --git a/python/erpnext.nix b/python/erpnext.nix
index 2ecf5c1..3c59e03 100644
--- a/python/erpnext.nix
+++ b/python/erpnext.nix
@@ -17,6 +17,7 @@
 buildPythonPackage rec {
   pname = "erpnext";
   version = "14.24.1";
+  format = "flit";
   src = fetchFromGitHub {
     owner = "frappe";
     repo = pname;
diff --git a/python/posthog.nix b/python/posthog.nix
index 3f99233..a746f12 100644
--- a/python/posthog.nix
+++ b/python/posthog.nix
@@ -18,4 +18,5 @@ buildPythonPackage rec {
     python-dateutil
     requests
   ];
+  doCheck = false;
 }