diff --git a/applications/highlight-termbin/index.js b/applications/highlight-termbin/index.js
index e7882ca..92345b4 100644
--- a/applications/highlight-termbin/index.js
+++ b/applications/highlight-termbin/index.js
@@ -37,6 +37,8 @@ async function init () {
       return res.status(404).end()
     }
 
+    res.header('Cache-Control', 'max-age=' + 7 * 24 * 60 * 60 * 1000)
+
     if (reqRaw) {
       return res.set('Content-Type', 'text/plain').send(text)
     }