diff --git a/src/SysConst.php b/src/SysConst.php
index 95a25d21..4ab26e48 100644
--- a/src/SysConst.php
+++ b/src/SysConst.php
@@ -11,7 +11,7 @@
 
 class SysConst
 {
-    const EASYSWOOLE_VERSION = '3.1.1-dev';
+    const EASYSWOOLE_VERSION = '3.1.1';
     const ERROR_HANDLER = 'ERROR_HANDLER';
     const SHUTDOWN_FUNCTION = 'SHUTDOWN_FUNCTION';