diff --git a/Makefile b/Makefile
index 33d61df..57c3c3e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PKG_NAME := acrn-hypervisor
-URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.2-140000p.tar.gz
+URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.4-140000p.tar.gz
 ARCHIVES = 
 
 include ../common/Makefile.common
diff --git a/acrn-hypervisor.spec b/acrn-hypervisor.spec
index 94524ee..748ef7c 100644
--- a/acrn-hypervisor.spec
+++ b/acrn-hypervisor.spec
@@ -4,10 +4,10 @@
 #
 %define keepstatic 1
 Name     : acrn-hypervisor
-Version  : 2019w37.2.140000p
-Release  : 233
-URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.2-140000p.tar.gz
-Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.2-140000p.tar.gz
+Version  : 2019w37.4.140000p
+Release  : 234
+URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.4-140000p.tar.gz
+Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.4-140000p.tar.gz
 Summary  : No detailed summary available
 Group    : Development/Tools
 License  : BSD-3-Clause CC-BY-4.0 ISC
@@ -134,14 +134,14 @@ staticdev components for the acrn-hypervisor package.
 
 
 %prep
-%setup -q -n acrn-hypervisor-acrn-2019w37.2-140000p
+%setup -q -n acrn-hypervisor-acrn-2019w37.4-140000p
 
 %build
 export http_proxy=http://127.0.0.1:9/
 export https_proxy=http://127.0.0.1:9/
 export no_proxy=localhost,127.0.0.1,0.0.0.0
 export LANG=C.UTF-8
-export SOURCE_DATE_EPOCH=1568216347
+export SOURCE_DATE_EPOCH=1568303841
 export GCC_IGNORE_WERROR=1
 export CFLAGS="$CFLAGS -fno-lto "
 export FCFLAGS="$CFLAGS -fno-lto "
@@ -151,7 +151,7 @@ make  %{?_smp_mflags} all sbl-hypervisor BUILD_VERSION=”%{version}_%{release}
 
 
 %install
-export SOURCE_DATE_EPOCH=1568216347
+export SOURCE_DATE_EPOCH=1568303841
 rm -rf %{buildroot}
 mkdir -p %{buildroot}/usr/share/package-licenses/acrn-hypervisor
 cp LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/LICENSE
diff --git a/options.conf b/options.conf
index 00f44a4..ed808eb 100644
--- a/options.conf
+++ b/options.conf
@@ -1,6 +1,6 @@
 [package]
 name = acrn-hypervisor
-url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.2-140000p.tar.gz
+url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w37.4-140000p.tar.gz
 archives = 
 giturl = https://github.com/projectacrn/acrn-hypervisor.git
 
diff --git a/release b/release
index 0c56bea..7b5813c 100644
--- a/release
+++ b/release
@@ -1 +1 @@
-233
+234
diff --git a/upstream b/upstream
index 0e3153b..148b9f3 100644
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-be715b30ae21e472c9a31e40c25a0d34b06dbc96/acrn-2019w37.2-140000p.tar.gz
+1e7bdc5642a3514b5e08ffb77cf830462b6d600c/acrn-2019w37.4-140000p.tar.gz
diff --git a/versions b/versions
index 58bbc2d..cd31a07 100644
--- a/versions
+++ b/versions
@@ -1 +1 @@
-2019w37.2.140000p
+2019w37.4.140000p