diff --git a/lib/proxy.js b/lib/proxy.js
index 9765704f16692b99284581cfb5f67ccb7ce848e3..0a0306bb0dbd4b0be254391d6e720b28c548491a 100644
--- a/lib/proxy.js
+++ b/lib/proxy.js
@@ -5,6 +5,9 @@ module.exports = {
 };
 
 function bootstrap() {
+  process.env.HTTP_PROXY = process.env.HTTP_PROXY || process.env.http_proxy;
+  process.env.HTTPS_PROXY = process.env.HTTPS_PROXY || process.env.https_proxy;
+  process.env.NO_PROXY = process.env.NO_PROXY || process.env.no_proxy;
   return createGlobalProxyAgent({
     environmentVariableNamespace: '',
   });