diff --git a/pkgs/development/python-modules/youtube-transcript-api/default.nix b/pkgs/development/python-modules/youtube-transcript-api/default.nix
index a26d5f9ca60b..80c913d9f130 100644
--- a/pkgs/development/python-modules/youtube-transcript-api/default.nix
+++ b/pkgs/development/python-modules/youtube-transcript-api/default.nix
@@ -2,6 +2,8 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  poetry-core,
+  defusedxml,
   requests,
   mock,
   httpretty,
@@ -12,18 +14,27 @@
 buildPythonPackage rec {
   pname = "youtube-transcript-api";
   version = "0.6.3";
-  format = "setuptools";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "jdepoix";
-    repo = pname;
+    repo = "youtube-transcript-api";
     tag = "v${version}";
     hash = "sha256-ZoF9BOQLrq2GVCZ98I8C9qouUhwZKEPp0zlTAqyEoYk=";
   };
 
-  propagatedBuildInputs = [ requests ];
+  build-system = [ poetry-core ];
+
+  pythonRelaxDeps = [
+    "defusedxml"
+  ];
+
+  dependencies = [
+    defusedxml
+    requests
+  ];
 
   nativeCheckInputs = [
     mock