diff --git a/package/x11r7/xlib_libX11/xlib_libX11.hash b/package/x11r7/xlib_libX11/xlib_libX11.hash
index acae656208..aeb0e9d74a 100644
--- a/package/x11r7/xlib_libX11/xlib_libX11.hash
+++ b/package/x11r7/xlib_libX11/xlib_libX11.hash
@@ -1,3 +1,2 @@
-# From http://lists.x.org/archives/xorg-announce/2015-March/002543.html
-sha1	6f2aadf8346ee00b7419bd338461c6986e274733				libX11-1.6.3.tar.bz2
-sha256	cf31a7c39f2f52e8ebd0db95640384e63451f9b014eed2bb7f5de03e8adc8111	libX11-1.6.3.tar.bz2
+# From https://lists.x.org/archives/xorg-announce/2016-October/002721.html
+sha256 b7c748be3aa16ec2cbd81edc847e9b6ee03f88143ab270fb59f58a044d34e441  libX11-1.6.4.tar.bz2
diff --git a/package/x11r7/xlib_libX11/xlib_libX11.mk b/package/x11r7/xlib_libX11/xlib_libX11.mk
index 259592413b..80e89b4830 100644
--- a/package/x11r7/xlib_libX11/xlib_libX11.mk
+++ b/package/x11r7/xlib_libX11/xlib_libX11.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-XLIB_LIBX11_VERSION = 1.6.3
+XLIB_LIBX11_VERSION = 1.6.4
 XLIB_LIBX11_SOURCE = libX11-$(XLIB_LIBX11_VERSION).tar.bz2
 XLIB_LIBX11_SITE = http://xorg.freedesktop.org/releases/individual/lib
 XLIB_LIBX11_LICENSE = MIT