diff --git a/action.js b/action.js
index ac5b60a..16f67c1 100644
--- a/action.js
+++ b/action.js
@@ -7,13 +7,17 @@ const repoBaseUrl = `${process.env.INPUT_REPO_URL}/${libName}/${version}`;
 const packageJsonUrls = [];
 
 const sendFile = async (path, data) => {
-  await fetch(`${repoBaseUrl}/${path}`, {
+  let r = await fetch(`${repoBaseUrl}/${path}`, {
     method: "PUT",
     headers: {
       Authorization: `Basic ${process.env.INPUT_REPO_USER}:${process.env.INPUT_REPO_PASS}`,
     },
     body: data,
   });
+
+  if (r.status != 200) {
+    throw `FAILED TO UPLOAD TO ${repoBaseUrl}/${path}`;
+  }
 };
 
 // Get system utils