diff --git a/pkgs/development/python-modules/fastapi/default.nix b/pkgs/development/python-modules/fastapi/default.nix
index af0831bb11ca..60dbe8fbfaf0 100644
--- a/pkgs/development/python-modules/fastapi/default.nix
+++ b/pkgs/development/python-modules/fastapi/default.nix
@@ -42,6 +42,8 @@ buildPythonPackage (finalAttrs: {
   pname = "fastapi";
   version = "0.139.0";
   pyproject = true;
+  __structuredAttrs = true;
+  strictDeps = true;
 
   src = fetchFromGitHub {
     owner = "tiangolo";