diff --git a/tox.ini b/tox.ini
index baf4e62f12..7db3dc1b09 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,6 +5,7 @@ skipsdist = True
 
 [testenv]
 deps = -r{toxinidir}/test-requirements.txt
+passenv = http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 
 [testenv:linters]
 commands =