diff --git a/src/ping.ts b/src/ping.ts
index 2ff2625..ce6c4c4 100644
--- a/src/ping.ts
+++ b/src/ping.ts
@@ -11,7 +11,11 @@ async function runPing(url: string): Promise<number> {
     const start = Date.now()
 
     if (process.env.NODE_ENV !== 'test') {
-      await fetch(url)
+      if (process.env.http_proxy) {
+        await fetch(url, { agent:new HttpsProxyAgent(process.env.http_proxy)})
+      } else {
+        await fetch(url)
+      }
     }
 
     return Date.now() - start