diff --git a/Makefile b/Makefile
index 23f5f6a..2991136 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PKG_NAME := acrn-hypervisor
-URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.3-140000p.tar.gz
+URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.4-140000p.tar.gz
 ARCHIVES = 
 
 include ../common/Makefile.common
diff --git a/acrn-hypervisor.spec b/acrn-hypervisor.spec
index 3b5e61c..b468d5b 100644
--- a/acrn-hypervisor.spec
+++ b/acrn-hypervisor.spec
@@ -4,10 +4,10 @@
 #
 %define keepstatic 1
 Name     : acrn-hypervisor
-Version  : 2020w18.3.140000p
-Release  : 283
-URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.3-140000p.tar.gz
-Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.3-140000p.tar.gz
+Version  : 2020w18.4.140000p
+Release  : 284
+URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.4-140000p.tar.gz
+Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.4-140000p.tar.gz
 Summary  : No detailed summary available
 Group    : Development/Tools
 License  : BSD-3-Clause CC-BY-4.0 ISC
@@ -128,15 +128,15 @@ staticdev components for the acrn-hypervisor package.
 
 
 %prep
-%setup -q -n acrn-hypervisor-acrn-2020w18.3-140000p
-cd %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p
+%setup -q -n acrn-hypervisor-acrn-2020w18.4-140000p
+cd %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p
 
 %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=1588231519
+export SOURCE_DATE_EPOCH=1588238758
 export GCC_IGNORE_WERROR=1
 export CFLAGS="$CFLAGS -fno-lto "
 export FCFLAGS="$FFLAGS -fno-lto "
@@ -146,14 +146,14 @@ make  %{?_smp_mflags}  RELEASE=0 all sbl-hypervisor BUILD_VERSION=%{version}_%{r
 
 
 %install
-export SOURCE_DATE_EPOCH=1588231519
+export SOURCE_DATE_EPOCH=1588238758
 rm -rf %{buildroot}
 mkdir -p %{buildroot}/usr/share/package-licenses/acrn-hypervisor
-cp %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p/LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/3cc9b5c24d3ab78578359aa1b98166ee5cf6df9b
-cp %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p/doc/LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/50862f16be94cd4a0162ee82eb55697c5b54c70e
-cp %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p/misc/acrn-config/kconfig/LICENSE.kconfiglib %{buildroot}/usr/share/package-licenses/acrn-hypervisor/0256be14ad1f607cb4bd89d716442115dab0294c
-cp %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p/misc/acrn-config/library/hypervisor_license %{buildroot}/usr/share/package-licenses/acrn-hypervisor/e769dc34d30330fcb407f27559c817e502fdfb13
-cp %{_builddir}/acrn-hypervisor-acrn-2020w18.3-140000p/misc/tools/acrn-crashlog/license_header %{buildroot}/usr/share/package-licenses/acrn-hypervisor/b63d865a65562d341e07541b47e5b542a3e2ca67
+cp %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p/LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/3cc9b5c24d3ab78578359aa1b98166ee5cf6df9b
+cp %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p/doc/LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/50862f16be94cd4a0162ee82eb55697c5b54c70e
+cp %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p/misc/acrn-config/kconfig/LICENSE.kconfiglib %{buildroot}/usr/share/package-licenses/acrn-hypervisor/0256be14ad1f607cb4bd89d716442115dab0294c
+cp %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p/misc/acrn-config/library/hypervisor_license %{buildroot}/usr/share/package-licenses/acrn-hypervisor/e769dc34d30330fcb407f27559c817e502fdfb13
+cp %{_builddir}/acrn-hypervisor-acrn-2020w18.4-140000p/misc/tools/acrn-crashlog/license_header %{buildroot}/usr/share/package-licenses/acrn-hypervisor/b63d865a65562d341e07541b47e5b542a3e2ca67
 %make_install RELEASE=0 sbl-hypervisor-install hypervisor-install-debug sbl-hypervisor-install-debug
 ## install_append content
 mkdir -p %{buildroot}/usr/lib/systemd/system/multi-user.target.wants
diff --git a/buildreq_cache b/buildreq_cache
index 4614b8b..181fef9 100644
--- a/buildreq_cache
+++ b/buildreq_cache
@@ -1,2 +1,2 @@
-2020w18.3.140000p
+2020w18.4.140000p
 numactl-dev
\ No newline at end of file
diff --git a/options.conf b/options.conf
index 35f4656..54cb670 100644
--- a/options.conf
+++ b/options.conf
@@ -1,6 +1,6 @@
 [package]
 name = acrn-hypervisor
-url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.3-140000p.tar.gz
+url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2020w18.4-140000p.tar.gz
 archives = 
 giturl = https://github.com/projectacrn/acrn-hypervisor.git
 domain = 
diff --git a/release b/release
index 6d26270..c9716b7 100644
--- a/release
+++ b/release
@@ -1 +1 @@
-283
+284
diff --git a/upstream b/upstream
index 6856477..bf4ac34 100644
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-926d97c8dc912202b4b81db35a96902e7ccd790f/acrn-2020w18.3-140000p.tar.gz
+be4d775b8b2d4f7028605611a70b8276a13b5ad4/acrn-2020w18.4-140000p.tar.gz
diff --git a/versions b/versions
index 77f1b39..ff35139 100644
--- a/versions
+++ b/versions
@@ -1 +1 @@
-2020w18.3.140000p
+2020w18.4.140000p