diff --git a/Protocols/Http/Session.php b/Protocols/Http/Session.php
index 6ae77e63d..db5b2a2f5 100644
--- a/Protocols/Http/Session.php
+++ b/Protocols/Http/Session.php
@@ -43,6 +43,13 @@ class Session
      */
     public static $name = 'PHPSID';
 
+    /**
+     * Auto update timestamp.
+     *
+     * @var bool
+     */
+    public static $autoUpdateTimestamp = false;
+
     /**
      * Session lifetime.
      *
@@ -297,6 +304,8 @@ public function save()
             } else {
                 static::$_handler->write($this->_sessionId, \serialize($this->_data));
             }
+        } elseif (static::$autoUpdateTimestamp) {
+            static::refresh();
         }
         $this->_needSave = false;
     }
@@ -384,15 +393,12 @@ protected static function initHandler()
     }
 
     /**
-     * Try GC sessions.
+     * GC sessions.
      *
      * @return void
      */
-    public function tryGcSessions()
+    public function gc()
     {
-        if (\rand(1, static::$gcProbability[1]) > static::$gcProbability[0]) {
-            return;
-        }
         static::$_handler->gc(static::$lifetime);
     }
 
@@ -404,7 +410,9 @@ public function tryGcSessions()
     public function __destruct()
     {
         $this->save();
-        $this->tryGcSessions();
+        if (\rand(1, static::$gcProbability[1]) >= static::$gcProbability[0]) {
+            $this->gc();
+        }
     }
 
     /**
diff --git a/Protocols/Http/Session/FileSessionHandler.php b/Protocols/Http/Session/FileSessionHandler.php
index 5c862a5e5..a6211a25c 100644
--- a/Protocols/Http/Session/FileSessionHandler.php
+++ b/Protocols/Http/Session/FileSessionHandler.php
@@ -13,6 +13,8 @@
  */
 namespace Workerman\Protocols\Http\Session;
 
+use Workerman\Protocols\Http\Session;
+
 /**
  * Class FileSessionHandler
  * @package Workerman\Protocols\Http\Session
@@ -70,6 +72,10 @@ public function read($session_id)
         $session_file = static::sessionFile($session_id);
         \clearstatcache();
         if (\is_file($session_file)) {
+            if (\time() - \filemtime($session_file) > Session::$lifetime) {
+                \unlink($session_file);
+                return '';
+            }
             $data = \file_get_contents($session_file);
             return $data ? $data : '';
         }