diff --git a/.SRCINFO b/.SRCINFO
index 1377eac..975d708 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = linux-clear
 	pkgver = 4.15.15
-	pkgrel = 1
+	pkgrel = 2
 	url = https://github.com/clearlinux-pkgs/linux
 	arch = x86_64
 	license = GPL2
@@ -16,7 +16,7 @@ pkgbase = linux-clear
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.15.tar.sign
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.15.15.xz
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.15.15.sign
-	source = clearlinux::git+https://github.com/clearlinux-pkgs/linux.git#tag=4.15.14-538
+	source = clearlinux::git+https://github.com/clearlinux-pkgs/linux.git#tag=4.15.15-539
 	source = https://downloadmirror.intel.com/27591/eng/microcode-20180312.tgz
 	source = 60-linux.hook
 	source = 90-linux.hook
diff --git a/PKGBUILD b/PKGBUILD
index 09c0a0c..96d73d9 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -5,8 +5,8 @@ pkgbase=linux-clear
 __basekernel=4.15
 _minor=15
 pkgver=${__basekernel}.${_minor}
-_clearver=${__basekernel}.14-538
-pkgrel=1
+_clearver=${__basekernel}.15-539
+pkgrel=2
 arch=('x86_64')
 url="https://github.com/clearlinux-pkgs/linux"
 license=('GPL2')
@@ -43,10 +43,10 @@ _kernelname=${pkgbase#linux}
 
 prepare() {
   cd linux-${__basekernel}
-  
+
   # add upstream patch
   patch -p1 -i ../patch-${pkgver}
-  
+
   cp -Tf $srcdir/clearlinux/config .config
   cp -a /usr/lib/firmware/i915 firmware/
   cp -a ${srcdir}/intel-ucode firmware/
@@ -57,7 +57,10 @@ prepare() {
     msg "Applying ${i}"
     patch -p1 -i "$srcdir/clearlinux/${i}"
   done
-  
+
+  # disable CONFIG_MODULE_SIG_FORCE
+  sed -i 's|CONFIG_MODULE_SIG_FORCE=y|# CONFIG_MODULE_SIG_FORCE is not set|' ./.config
+
   if [ "${_kernelname}" != "" ]; then
     sed -i "s|CONFIG_LOCALVERSION=.*|CONFIG_LOCALVERSION=\"${_kernelname}\"|g" ./.config
     sed -i "s|CONFIG_LOCALVERSION_AUTO=.*|CONFIG_LOCALVERSION_AUTO=n|" ./.config