diff --git a/lib/client-sessions.js b/lib/client-sessions.js
index a8d91ea..50ee01c 100644
--- a/lib/client-sessions.js
+++ b/lib/client-sessions.js
@@ -5,7 +5,6 @@
 const Cookies = require("cookies");
 
 const crypto = require("crypto");
-const util = require("util");
 
 
 const COOKIE_NAME_SEP = '=';