diff --git a/pyproject.toml b/pyproject.toml
index 1432ab8..81bda6a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name    = "mvg"
-version = "1.2.0"
+version = "1.2.1"
 
 description = "An unofficial interface to timetable information of the Münchner Verkehrsgesellschaft (MVG)."
 readme      = "README.md"
diff --git a/src/mvg/mvgapi.py b/src/mvg/mvgapi.py
index f310742..b045eb7 100644
--- a/src/mvg/mvgapi.py
+++ b/src/mvg/mvgapi.py
@@ -117,7 +117,7 @@ async def __api(base: Base, endpoint: Endpoint | tuple[str, list[str]], args: di
         url.set(query_params=args)
 
         try:
-            async with aiohttp.ClientSession() as session, session.get(
+            async with aiohttp.ClientSession(trust_env=True) as session, session.get(
                 url.url,
             ) as resp:
                 if resp.status != HTTPStatus.OK: