diff --git a/core/linux-am33x/PKGBUILD b/core/linux-am33x/PKGBUILD
index 7f68ebcb8..63f406b14 100644
--- a/core/linux-am33x/PKGBUILD
+++ b/core/linux-am33x/PKGBUILD
@@ -7,7 +7,7 @@ pkgbase=linux-am33x
 _srcname=linux-4.5
 _kernelname=${pkgbase#linux}
 _desc="TI AM335x Beaglebone (Black)"
-pkgver=4.5.2
+pkgver=4.5.3
 pkgrel=1
 rcnrel=bone4
 arch=('armv7h')
@@ -21,10 +21,10 @@ source=("http://www.kernel.org/pub/linux/kernel/v4.x/${_srcname}.tar.xz"
         "git+https://github.com/RobertCNelson/bb.org-overlays.git"
         'config')
 md5sums=('a60d48eee08ec0536d5efb17ca819aef'
-         '19a835c1d16183f629d45779f62d36b6'
-         'a2723207712de7f03a243c24c532c306'
+         'efc81327bd2bd0d946f057ac71cbb1a7'
+         'eb0107d527f500d98c65a318fe85c44a'
          'SKIP'
-         '6c09813791d5248223c2b661beecd18b')
+         '1b52e6c0214484e6f85cb63fe3659c76')
 
 prepare() {
   cd "${srcdir}/${_srcname}"
diff --git a/core/linux-am33x/config b/core/linux-am33x/config
index 8996c44b7..4280f658e 100644
--- a/core/linux-am33x/config
+++ b/core/linux-am33x/config
@@ -1,6 +1,6 @@
 #
 # Automatically generated file; DO NOT EDIT.
-# Linux/arm 4.5.1-1 Kernel Configuration
+# Linux/arm 4.5.3-1 Kernel Configuration
 #
 CONFIG_ARM=y
 CONFIG_ARM_HAS_SG_CHAIN=y
@@ -2569,6 +2569,7 @@ CONFIG_SERIAL_8250_RUNTIME_UARTS=6
 CONFIG_SERIAL_8250_FSL=y
 CONFIG_SERIAL_8250_DW=y
 # CONFIG_SERIAL_8250_EM is not set
+# CONFIG_SERIAL_8250_RT288X is not set
 CONFIG_SERIAL_8250_OMAP=y
 CONFIG_SERIAL_8250_OMAP_TTYO_FIXUP=y
 CONFIG_SERIAL_OF_PLATFORM=y
@@ -2598,7 +2599,6 @@ CONFIG_CONSOLE_POLL=y
 # CONFIG_SERIAL_ST_ASC is not set
 # CONFIG_SERIAL_STM32 is not set
 # CONFIG_SERIAL_MVEBU_UART is not set
-CONFIG_SERIAL_MCTRL_GPIO=y
 # CONFIG_TTY_PRINTK is not set
 CONFIG_HVC_DRIVER=y
 # CONFIG_HVC_DCC is not set