diff --git a/src/http.rs b/src/http.rs
index a53e6ba2674170..6594c97a31b7da 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -47,7 +47,7 @@ fn test_fetch_sync_string() {
 
   tokio_util::init(|| {
     tokio_util::block_on(futures::future::lazy(|| -> DenoResult<()> {
-      let p = fetch_sync_string("http://localhost:4545/package.json")?;
+      let p = fetch_sync_string("http://127.0.0.1:4545/package.json")?;
       println!("package.json len {}", p.len());
       assert!(p.len() > 1);
       Ok(())