diff --git a/Makefile b/Makefile
index ec610cf..b53ae61 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PKG_NAME := acrn-hypervisor
-URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.1-140000p.tar.gz
+URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.4-140000p.tar.gz
 ARCHIVES = 
 
 include ../common/Makefile.common
diff --git a/acrn-hypervisor.spec b/acrn-hypervisor.spec
index e887db1..db0d1b7 100644
--- a/acrn-hypervisor.spec
+++ b/acrn-hypervisor.spec
@@ -4,10 +4,10 @@
 #
 %define keepstatic 1
 Name     : acrn-hypervisor
-Version  : 2019w15.1.140000p
-Release  : 182
-URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.1-140000p.tar.gz
-Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.1-140000p.tar.gz
+Version  : 2019w15.4.140000p
+Release  : 183
+URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.4-140000p.tar.gz
+Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.4-140000p.tar.gz
 Summary  : No detailed summary available
 Group    : Development/Tools
 License  : BSD-3-Clause CC-BY-4.0 ISC
@@ -117,20 +117,20 @@ services components for the acrn-hypervisor package.
 
 
 %prep
-%setup -q -n acrn-hypervisor-acrn-2019w15.1-140000p
+%setup -q -n acrn-hypervisor-acrn-2019w15.4-140000p
 
 %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
-export SOURCE_DATE_EPOCH=1554726736
+export SOURCE_DATE_EPOCH=1554988132
 export LDFLAGS="${LDFLAGS} -fno-lto"
 make  %{?_smp_mflags} all sbl-hypervisor BUILD_VERSION=”%{version}_%{release}” BUILD_TAG=”%{version}”
 
 
 %install
-export SOURCE_DATE_EPOCH=1554726736
+export SOURCE_DATE_EPOCH=1554988132
 rm -rf %{buildroot}
 mkdir -p %{buildroot}/usr/share/package-licenses/acrn-hypervisor
 cp LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/LICENSE
@@ -161,8 +161,8 @@ ln -s ../../samples/apl-mrb/launch_uos.sh %{buildroot}/usr/share/acrn/conf/add/v
 /usr/lib/acrn/acrn.sbl
 /usr/lib/systemd/network/50-acrn.netdev
 /usr/lib/systemd/network/50-acrn.network
-/usr/lib/systemd/network/50-acrn_tap0.netdev
 /usr/lib/systemd/network/50-eth.network
+/usr/lib/systemd/network/50-tap0.netdev
 
 %files autostart
 %defattr(-,root,root,-)
diff --git a/options.conf b/options.conf
index 71ae32d..fc6e836 100644
--- a/options.conf
+++ b/options.conf
@@ -1,6 +1,6 @@
 [package]
 name = acrn-hypervisor
-url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.1-140000p.tar.gz
+url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2019w15.4-140000p.tar.gz
 archives = 
 giturl = https://github.com/projectacrn/acrn-hypervisor.git
 
diff --git a/release b/release
index 960e7a8..90afb3e 100644
--- a/release
+++ b/release
@@ -1 +1 @@
-182
+183
diff --git a/upstream b/upstream
index ff8cbc4..a2a2c29 100644
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-8e467ee14354babe815cdb2fd1d76ed8f84b4091/acrn-2019w15.1-140000p.tar.gz
+5fca5447f71ee459c6c23da4da8129ba59b4b980/acrn-2019w15.4-140000p.tar.gz