diff --git a/Makefile b/Makefile
index 837736c..7e696ef 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 #
-# Copyright (C) 2014-2019 Jian Chang <aa65535@live.com>
+# Copyright (C) 2014-2020 Jian Chang <aa65535@live.com>
 #
 # This is free software, licensed under the GNU General Public License v3.
 # See /LICENSE for more information.
@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=shadowsocks-libev
-PKG_VERSION:=3.3.3
+PKG_VERSION:=3.3.4
 PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/shadowsocks/shadowsocks-libev.git
-PKG_SOURCE_VERSION:=e2765847cce57a24d845fcb969fdba6cc1420cf3
+PKG_SOURCE_VERSION:=72d7d9217ce2a8a59dc647e8f1fbbd77f7cd30aa
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION)
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz