diff --git a/src/app/credential-internal.ts b/src/app/credential-internal.ts
index 2171d6e637..dab12186f4 100644
--- a/src/app/credential-internal.ts
+++ b/src/app/credential-internal.ts
@@ -477,7 +477,11 @@ function populateGoogleAuth(keyFile: string | object, httpAgent?: Agent)
     copyAttr(keyFile, keyFile, 'private_key', 'privateKey');
     copyAttr(keyFile, keyFile, 'client_email', 'clientEmail');
     
-    client = auth.fromJSON(keyFile);
+    client = auth.fromJSON(keyFile, {
+      transporterOptions: {
+        agent: httpAgent,
+      },
+    });
   }
   return { auth, client };
 }