diff --git a/Config.mk b/Config.mk
index fa0414055b..13aa6ce3ab 100644
--- a/Config.mk
+++ b/Config.mk
@@ -221,7 +221,7 @@ OVMF_UPSTREAM_URL ?= https://xenbits.xen.org/git-http/ovmf.git
 OVMF_UPSTREAM_REVISION ?= ba91d0292e593df8528b66f99c1b0b14fadc8e16
 
 QEMU_UPSTREAM_URL ?= https://xenbits.xen.org/git-http/qemu-xen.git
-QEMU_UPSTREAM_REVISION ?= master
+QEMU_UPSTREAM_REVISION ?= 3fdb3cd3a27a22a050c7d27126a24807a7a45745
 
 MINIOS_UPSTREAM_URL ?= https://xenbits.xen.org/git-http/mini-os.git
 MINIOS_UPSTREAM_REVISION ?= 6d5159e8410be16a47433bac1627e63f8adc7cd9