diff --git a/src/WordPress/WPCrm.php b/src/WordPress/WPCrm.php
index 4d86310..04a71ec 100644
--- a/src/WordPress/WPCrm.php
+++ b/src/WordPress/WPCrm.php
@@ -360,6 +360,17 @@ class WPCrm
         return self::$user = new WPCrmUser();
     }
 
+    /**
+     * Remove active user
+     * to prevent WPCrm::check to return true
+     *
+     * @return void
+     */
+    public static function unsetActiveUser()
+    {
+        self::$user = null;
+    }
+
     // --- PRIVATE --- METHODS
 
     /**
@@ -457,6 +468,16 @@ class WPCrm
         if (!session_id() && !self::$sessionDestroyed) {
             session_start();
         }
+        if (
+            isset($_SESSION[self::$sessionKey]) and
+            isset($_SESSION['lastActivity']) and
+            ($_SESSION['lastActivity'] + 120) < time()
+        ) {
+            self::$sessionDestroyed = true;
+            unset($_SESSION[self::$sessionKey]);
+        } else {
+            $_SESSION['lastActivity'] = time();
+        }
         if (!self::$user and array_key_exists(self::$sessionKey, $_SESSION)) {
             /**
              * The user object