diff --git a/pkgs/development/python-modules/fastapi/default.nix b/pkgs/development/python-modules/fastapi/default.nix
index 05644d43310f..8815da5dfdee 100644
--- a/pkgs/development/python-modules/fastapi/default.nix
+++ b/pkgs/development/python-modules/fastapi/default.nix
@@ -9,6 +9,8 @@
 , databases
 , flask
 , httpx
+, hatchling
+, orjson
 , passlib
 , peewee
 , python-jose
@@ -19,18 +21,22 @@
 
 buildPythonPackage rec {
   pname = "fastapi";
-  version = "0.79.1";
-  format = "flit";
+  version = "0.85.0";
+  format = "pyproject";
 
-  disabled = pythonOlder "3.6";
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "tiangolo";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-vriEwUcdITKLeIy1++dvsl5Guhtjlk2WZQrprVQsYMc=";
+    hash = "sha256-mgrw5MQMqFcXExtsu/jW01dMlygfE1GzSqXHI6BG7j4=";
   };
 
+  nativeBuildInputs = [
+    hatchling
+  ];
+
   postPatch = ''
     substituteInPlace pyproject.toml \
       --replace "starlette==" "starlette>="
@@ -46,6 +52,7 @@ buildPythonPackage rec {
     databases
     flask
     httpx
+    orjson
     passlib
     peewee
     python-jose