diff --git a/pkgs/development/python-modules/bravado-core/default.nix b/pkgs/development/python-modules/bravado-core/default.nix
index 86c7f7b57c91..9699e1cc04fb 100644
--- a/pkgs/development/python-modules/bravado-core/default.nix
+++ b/pkgs/development/python-modules/bravado-core/default.nix
@@ -2,6 +2,7 @@
 , buildPythonPackage
 , fetchFromGitHub
 , pythonOlder
+, setuptools
   # build inputs
 , jsonref
 , jsonschema
@@ -20,8 +21,8 @@
 
 buildPythonPackage rec {
   pname = "bravado-core";
-  version = "6.1.0";
-  format = "setuptools";
+  version = "6.6.1";
+  pyproject = true;
 
   disabled = pythonOlder "3.7";
 
@@ -29,12 +30,16 @@ buildPythonPackage rec {
     owner = "Yelp";
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-/ePs3znbwamMHHzb/PD4UHq+7v0j1r1X3J3Bnb4S2VU=";
+    hash = "sha256-kyHmZNPl5lLKmm5i3TSi8Tfi96mQHqaiyBfceBJcOdw=";
   };
 
+  nativeBuildInputs = [
+    setuptools
+  ];
+
   propagatedBuildInputs = [
     jsonref
-    jsonschema # with optional dependencies for format
+    jsonschema # jsonschema[format-nongpl]
     python-dateutil
     pyyaml
     requests
@@ -43,7 +48,7 @@ buildPythonPackage rec {
     swagger-spec-validator
     pytz
     msgpack
-  ] ++ jsonschema.optional-dependencies.format;
+  ] ++ jsonschema.optional-dependencies.format-nongpl;
 
   nativeCheckInputs = [
     pytestCheckHook