diff --git a/Makefile b/Makefile
index 468292b..3d661cb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 PKG_NAME := acrn-hypervisor
-URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.2-140000p.tar.gz
+URL = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.4-140000p.tar.gz
 ARCHIVES = 
 
 include ../common/Makefile.common
diff --git a/acrn-hypervisor.spec b/acrn-hypervisor.spec
index 336da3c..058b22c 100644
--- a/acrn-hypervisor.spec
+++ b/acrn-hypervisor.spec
@@ -4,10 +4,10 @@
 #
 %define keepstatic 1
 Name     : acrn-hypervisor
-Version  : 2018w41.2.140000p
-Release  : 100
-URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.2-140000p.tar.gz
-Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.2-140000p.tar.gz
+Version  : 2018w41.4.140000p
+Release  : 101
+URL      : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.4-140000p.tar.gz
+Source0  : https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.4-140000p.tar.gz
 Summary  : No detailed summary available
 Group    : Development/Tools
 License  : BSD-3-Clause CC-BY-4.0 ISC
@@ -101,7 +101,7 @@ license components for the acrn-hypervisor package.
 
 
 %prep
-%setup -q -n acrn-hypervisor-acrn-2018w41.2-140000p
+%setup -q -n acrn-hypervisor-acrn-2018w41.4-140000p
 %patch1 -p1
 %patch2 -p1
 %patch3 -p1
@@ -111,11 +111,11 @@ 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=1539120152
+export SOURCE_DATE_EPOCH=1539268195
 make  %{?_smp_mflags} all sbl-hypervisor BUILD_VERSION=”%{version}_%{release}” BUILD_TAG=”%{version}”
 
 %install
-export SOURCE_DATE_EPOCH=1539120152
+export SOURCE_DATE_EPOCH=1539268195
 rm -rf %{buildroot}
 mkdir -p %{buildroot}/usr/share/package-licenses/acrn-hypervisor
 cp LICENSE %{buildroot}/usr/share/package-licenses/acrn-hypervisor/LICENSE
@@ -190,7 +190,7 @@ cp tools/acrn-crashlog/license_header %{buildroot}/usr/share/package-licenses/ac
 /usr/lib/acrn/acrn.sbl.out
 
 %files license
-%defattr(-,root,root,-)
+%defattr(0644,root,root,0755)
 /usr/share/package-licenses/acrn-hypervisor/LICENSE
 /usr/share/package-licenses/acrn-hypervisor/doc_LICENSE
 /usr/share/package-licenses/acrn-hypervisor/scripts_kconfig_LICENSE.kconfiglib
diff --git a/options.conf b/options.conf
index c6e2986..069a746 100644
--- a/options.conf
+++ b/options.conf
@@ -1,6 +1,6 @@
 [package]
 name = acrn-hypervisor
-url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.2-140000p.tar.gz
+url = https://github.com/projectacrn/acrn-hypervisor/archive/acrn-2018w41.4-140000p.tar.gz
 archives = 
 giturl = https://github.com/projectacrn/acrn-hypervisor.git
 
diff --git a/release b/release
index 29d6383..398050c 100644
--- a/release
+++ b/release
@@ -1 +1 @@
-100
+101
diff --git a/upstream b/upstream
index a0f4c88..23b0764 100644
--- a/upstream
+++ b/upstream
@@ -1 +1 @@
-3b7c21e87de404a3ccb2f9f3bf73a1222428ea36/acrn-2018w41.2-140000p.tar.gz
+c494befca6c8c311ac8fc4dc2b599b903d4591b0/acrn-2018w41.4-140000p.tar.gz