diff --git a/src/_utils.ts b/src/_utils.ts
index 40d1cdc..6ce3c05 100644
--- a/src/_utils.ts
+++ b/src/_utils.ts
@@ -90,6 +90,8 @@ export async function sendFetch(
   const res = await fetch(url, {
     ...options,
     headers: normalizeHeaders(options.headers),
+  }).catch((error: any) => {
+    throw new Error(`Failed to download ${url}: ${error}`);
   });
 
   if (options.validateStatus && res.status >= 400) {