diff --git a/lib/releases.js b/lib/releases.js
index b001dbc..ed6ab36 100644
--- a/lib/releases.js
+++ b/lib/releases.js
@@ -45,7 +45,7 @@ async function fetchReleases (githubToken) {
     throw new Error('failed fetching releases (' + resp.message.statusCode + ')');
   }
   
-  body = await resp.readBody();
+  let body = await resp.readBody();
   const releasesMeta = JSON.parse(body);
 
   /**