diff --git a/pkgs/development/python-modules/connexion/default.nix b/pkgs/development/python-modules/connexion/default.nix
index d4eb668d73edb..43ce2c92a5368 100644
--- a/pkgs/development/python-modules/connexion/default.nix
+++ b/pkgs/development/python-modules/connexion/default.nix
@@ -1,70 +1,94 @@
 { lib
-, aiohttp
-, aiohttp-jinja2
-, aiohttp-remotes
-, aiohttp-swagger
-, buildPythonPackage
-, clickclick
-, decorator
 , fetchFromGitHub
-, flask
+, buildPythonPackage
+, pythonOlder
+
+# build-system
+, poetry-core
+
+# dependencies
+, asgiref
+, httpx
 , inflection
 , jsonschema
-, openapi-spec-validator
-, packaging
-, pytest-aiohttp
-, pytestCheckHook
-, pythonOlder
+, jinja2
+, python-multipart
 , pyyaml
 , requests
+, starlette
+, typing-extensions
+, werkzeug
+
+# optional-dependencies
+, a2wsgi
+, flask
 , swagger-ui-bundle
+, uvicorn
+
+# tests
+, pytest-aiohttp
+, pytestCheckHook
 , testfixtures
 }:
 
 buildPythonPackage rec {
   pname = "connexion";
-  version = "2.14.2";
-  format = "setuptools";
+  version = "3.0.1";
+  pyproject = true;
 
-  disabled = pythonOlder "3.6";
+  disabled = pythonOlder "3.8";
 
   src = fetchFromGitHub {
     owner = "spec-first";
     repo = pname;
     rev = "refs/tags/${version}";
-    hash = "sha256-1v1xCHY3ZnZG/Vu9wN/it7rLKC/StoDefoMNs+hMjIs=";
+    hash = "sha256-9h2eDwRnHeXgccrTgFJEyMymsJH8f9aABb+M/yFvpr4=";
   };
 
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
   propagatedBuildInputs = [
-    aiohttp
-    aiohttp-jinja2
-    aiohttp-swagger
-    clickclick
-    flask
+    asgiref
+    httpx
     inflection
     jsonschema
-    openapi-spec-validator
-    packaging
+    jinja2
+    python-multipart
     pyyaml
     requests
-    swagger-ui-bundle
+    starlette
+    typing-extensions
+    werkzeug
   ];
 
+  passthru.optional-dependencies = {
+    flask = [
+      a2wsgi
+      flask
+    ];
+    swagger-ui = [
+      swagger-ui-bundle
+    ];
+    uvicorn = [
+      uvicorn
+    ];
+  };
+
   nativeCheckInputs = [
-    aiohttp-remotes
-    decorator
     pytest-aiohttp
     pytestCheckHook
     testfixtures
-  ];
+  ] ++ lib.flatten (builtins.attrValues passthru.optional-dependencies);
 
   pythonImportsCheck = [
     "connexion"
   ];
 
   disabledTests = [
-    # AssertionError
-    "test_headers"
+    # ValueError: 'name' may not be empty.
+    "test_api_base_path_slash"
   ];
 
   meta = with lib; {
diff --git a/pkgs/development/python-modules/py-swagger-ui/default.nix b/pkgs/development/python-modules/py-swagger-ui/default.nix
new file mode 100644
index 0000000000000..c62046d7fa378
--- /dev/null
+++ b/pkgs/development/python-modules/py-swagger-ui/default.nix
@@ -0,0 +1,52 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+
+# build-system
+, poetry-core
+
+# dependencies
+, importlib-resources
+, jinja2
+
+# tests
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "py-swagger-ui";
+  version = "1.1.0";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "spec-first";
+    repo = "py-swagger-ui";
+    rev = version;
+    hash = "sha256-XU+zrpefNW3+UA45P3wN5jNo8HWduG6T5krhqio92No=";
+  };
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
+  propagatedBuildInputs = [
+    importlib-resources
+    jinja2
+  ];
+
+  pythonImportsCheck = [
+    "py_swagger_ui"
+  ];
+
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  meta = with lib; {
+    changelog = "https://github.com/spec-first/py-swagger-ui/releases/tag/${version}";
+    description = "Swagger UI bundled for usage with Python";
+    homepage = "https://github.com/spec-first/py-swagger-ui";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 51317d3dbaacc..91272ceb82c01 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -9662,6 +9662,8 @@ self: super: with self; {
 
   py-ubjson = callPackage ../development/python-modules/py-ubjson { };
 
+  py-swagger-ui = callPackage ../development/python-modules/py-swagger-ui { };
+
   py-zabbix = callPackage ../development/python-modules/py-zabbix { };
 
   py17track = callPackage ../development/python-modules/py17track { };