diff --git a/packages/core/src/utils/fetch.ts b/packages/core/src/utils/fetch.ts
index fa969ae..354aa46 100644
--- a/packages/core/src/utils/fetch.ts
+++ b/packages/core/src/utils/fetch.ts
@@ -8,6 +8,7 @@ import { getErrorMessage, isNodeError } from './errors.js';
 import { URL } from 'node:url';
 
 const PRIVATE_IP_RANGES = [
+  /^localhost$/i,
   /^10\./,
   /^127\./,
   /^172\.(1[6-9]|2[0-9]|3[0-1])\./,