diff --git a/xray-core/Makefile b/xray-core/Makefile
index 28cb2b689..1c34c8f79 100644
--- a/xray-core/Makefile
+++ b/xray-core/Makefile
@@ -1,12 +1,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=Xray-core
-PKG_VERSION:=1.6.5
+PKG_VERSION:=1.6.6
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/XTLS/Xray-core/tar.gz/v$(PKG_VERSION)?
-PKG_HASH:=61956d8d72d086fbf83e6a3aff191d010401aca34f30015f839f8a73bf50914c
+PKG_HASH:=b92053f2bde18fb83efeb938b1d5fa7a9d62e8fe8c795e747b8c521e1cbd002a
 
 PKG_MAINTAINER:=Tianling Shen <cnsztl@immortalwrt.org>
 PKG_LICENSE:=MPL-2.0