diff --git a/php_asf.h b/php_asf.h
index bbf020b..ba489fa 100644
--- a/php_asf.h
+++ b/php_asf.h
@@ -22,7 +22,7 @@
 extern zend_module_entry asf_module_entry;
 #define phpext_asf_ptr &asf_module_entry
 
-#define PHP_ASF_VERSION "2.1.5"
+#define PHP_ASF_VERSION "2.1.6"
 #define PHP_ASF_AUTHOR  "fanjiapeng"
 #define PHP_ASF_DESCRIPTION "This is PHP framework written in C. It is simple, fast, standard, security."