diff --git a/.github/workflows/samples-python-petstore.yaml b/.github/workflows/samples-python-petstore.yaml
index 12094eea2668..97634329ff68 100644
--- a/.github/workflows/samples-python-petstore.yaml
+++ b/.github/workflows/samples-python-petstore.yaml
@@ -4,6 +4,7 @@ on:
   pull_request:
     paths:
       - samples/openapi3/client/petstore/python-aiohttp/**
+      - samples/openapi3/client/petstore/python-httpx/**
       - samples/openapi3/client/petstore/python/**
       - .github/workflows/samples-python-petstore.yaml
 
diff --git a/bin/configs/python-httpx.yaml b/bin/configs/python-httpx.yaml
index afc0b04ee9c0..e869fc19d669 100644
--- a/bin/configs/python-httpx.yaml
+++ b/bin/configs/python-httpx.yaml
@@ -4,6 +4,7 @@ inputSpec: modules/openapi-generator/src/test/resources/3_0/python/petstore-with
 templateDir: modules/openapi-generator/src/main/resources/python
 library: httpx
 additionalProperties:
+  buildSystem: hatchling
   packageName: petstore_api
   mapNumberTo: float
   poetry1: false
diff --git a/samples/openapi3/client/petstore/python-httpx/pyproject.toml b/samples/openapi3/client/petstore/python-httpx/pyproject.toml
index e2b04a89e77e..fd41b01c6fd1 100644
--- a/samples/openapi3/client/petstore/python-httpx/pyproject.toml
+++ b/samples/openapi3/client/petstore/python-httpx/pyproject.toml
@@ -35,8 +35,8 @@ mypy = ">= 1.5"
 
 
 [build-system]
-requires = ["setuptools"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [tool.pylint.'MESSAGES CONTROL']
 extension-pkg-whitelist = "pydantic"