diff --git a/.SRCINFO b/.SRCINFO
index 10c6b9a..ee618a2 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,6 +1,6 @@
 pkgbase = linux-clear
-	pkgver = 4.16.3
-	pkgrel = 2
+	pkgver = 4.16.4
+	pkgrel = 1
 	url = https://github.com/clearlinux-pkgs/linux
 	arch = x86_64
 	license = GPL2
@@ -14,9 +14,9 @@ pkgbase = linux-clear
 	options = !strip
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.16.tar.xz
 	source = https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.16.tar.sign
-	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.16.3.xz
-	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.16.3.sign
-	source = clearlinux::git+https://github.com/clearlinux-pkgs/linux.git#tag=4.16.2-552
+	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.16.4.xz
+	source = https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.16.4.sign
+	source = clearlinux::git+https://github.com/clearlinux-pkgs/linux.git#tag=4.16.3-553
 	source = https://downloadmirror.intel.com/27591/eng/microcode-20180312.tgz
 	source = 60-linux.hook
 	source = 90-linux.hook
@@ -26,7 +26,7 @@ pkgbase = linux-clear
 	validpgpkeys = 647F28654894E3BD457199BE38DBBDC86092693E
 	sha256sums = 63f6dc8e3c9f3a0273d5d6f4dca38a2413ca3a5f689329d05b750e4c87bb21b9
 	sha256sums = SKIP
-	sha256sums = 336252cb15f2f2574461c1d3daabf5dc207842526085802270e1e5223f645db3
+	sha256sums = bad271dbda2d024daf4a2ab6e122b95b262ea80508ac8018bc61e8aa44f40cfe
 	sha256sums = SKIP
 	sha256sums = SKIP
 	sha256sums = 0b381face2df1b0a829dc4fa8fa93f47f39e11b1c9c22ebd44f8614657c1e779
diff --git a/PKGBUILD b/PKGBUILD
index 5d0c8c0..b0ac47b 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -3,10 +3,10 @@
 
 pkgbase=linux-clear
 __basekernel=4.16
-_minor=3
+_minor=4
 pkgver=${__basekernel}.${_minor}
-_clearver=${__basekernel}.2-552
-pkgrel=2
+_clearver=${__basekernel}.3-553
+pkgrel=1
 arch=('x86_64')
 url="https://github.com/clearlinux-pkgs/linux"
 license=('GPL2')
@@ -30,7 +30,7 @@ validpgpkeys=(
 )
 sha256sums=('63f6dc8e3c9f3a0273d5d6f4dca38a2413ca3a5f689329d05b750e4c87bb21b9'
             'SKIP'
-            '336252cb15f2f2574461c1d3daabf5dc207842526085802270e1e5223f645db3'
+            'bad271dbda2d024daf4a2ab6e122b95b262ea80508ac8018bc61e8aa44f40cfe'
             'SKIP'
             'SKIP'
             '0b381face2df1b0a829dc4fa8fa93f47f39e11b1c9c22ebd44f8614657c1e779'
@@ -68,6 +68,9 @@ prepare() {
       -e "/^EXTRAVERSION =/aLOCALVERSION =" \
       -i Makefile
 
+  # set ACPI_REV_OVERRIDE_POSSIBLE to prevent optimus lockup
+  sed -i "s|# CONFIG_ACPI_REV_OVERRIDE_POSSIBLE is not set|CONFIG_ACPI_REV_OVERRIDE_POSSIBLE=y|g" ./.config
+
   # don't run depmod on 'make install'. We'll do this ourselves in packaging
   sed -i '2iexit 0' scripts/depmod.sh