diff --git a/nvchecker/source/aiohttp_httpclient.py b/nvchecker/source/aiohttp_httpclient.py
index bc73107..de5c743 100644
--- a/nvchecker/source/aiohttp_httpclient.py
+++ b/nvchecker/source/aiohttp_httpclient.py
@@ -32,6 +32,7 @@ class BetterClientSession(aiohttp.ClientSession):
 session = BetterClientSession(
     connector = connector,
     timeout = aiohttp.ClientTimeout(total=20),
+    trust_env = True,
 )
 
 @atexit.register