diff --git a/pyorthanc/async_client.py b/pyorthanc/async_client.py
index 3acb175..5bdb48e 100644
--- a/pyorthanc/async_client.py
+++ b/pyorthanc/async_client.py
@@ -35,7 +35,7 @@ def __init__(self, url: str, username: Optional[str] = None, password: Optional[
         *args, **kwargs
             Parameters passed to the httpx.Client (headers, timeout, etc.)
         """
-        super().__init__()
+        super().__init__(*args, **kwargs)
         self.url = url
         self.version = '1.12.1'
         self.return_raw_response = return_raw_response
diff --git a/pyproject.toml b/pyproject.toml
index 8ebb74c..00e21d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -13,7 +13,7 @@ pydicom = "^2.3.0"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.1.0"
-simple-openapi-client = "^0.5.1"
+simple-openapi-client = "^0.5.2"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]