diff --git a/lib/slack.js b/lib/slack.js
index 42330558..8546cf01 100644
--- a/lib/slack.js
+++ b/lib/slack.js
@@ -70,6 +70,11 @@ export default class SlackData extends EventEmitter {
       return this.retry()
     }
 
+    // Too Many Requests
+    if (res.status == 429) {
+      return this.retry(res.headers['retry-after'] * 1000)
+    }
+
     let users = res.body.members
 
     if (!users || (users && !users.length)) {