diff --git a/modules/xen b/modules/xen
index cb81109d..cc4dcd98 100644
--- a/modules/xen
+++ b/modules/xen
@@ -2,12 +2,12 @@ modules-$(CONFIG_XEN) += xen
 
 # We extract the entire Xen tree, but only use the xen/xen hypervisor
 # portion since Qubes provides the rest of it.
-xen_base_version := 4.6.5
-xen_version := $(xen_base_version)-28
+xen_base_version := 4.6.6
+xen_version := $(xen_base_version)-29
 xen_dir := qubes-vmm-xen-$(xen_version)/
 xen_tar := qubes-vmm-xen-$(xen_version).tar.gz
 xen_url := https://github.com/QubesOS/qubes-vmm-xen/archive/v$(xen_version).tar.gz
-xen_hash := 314b01af6726ed7b09dfd72ff8b224636d822d432790765287abeedc81fd86b2
+xen_hash := 64bf6a7179252d954ed67cfc7b64af88016812164032e4aaa30e0fc996e73d90
 
 xen_depends := musl-cross
 
diff --git a/patches/xen-4.6.5-28.patch b/patches/xen-4.6.6-29.patch
similarity index 100%
rename from patches/xen-4.6.5-28.patch
rename to patches/xen-4.6.6-29.patch