diff --git a/build.sh b/build.sh
index a0c495a1..2b80ee96 100755
--- a/build.sh
+++ b/build.sh
@@ -56,7 +56,7 @@ else
 fi
 
 #_get_repo source https://github.com/ysurac/openmptcprouter-source "master"
-_get_repo "$OMR_TARGET/source" https://github.com/openwrt/openwrt "577174cf60ddbdd8233f9aa029d7c0ee97c681fc"
+_get_repo "$OMR_TARGET/source" https://github.com/openwrt/openwrt "ef5b7aa6c3a58d272c8b4ecdb8b1d970d5436e05"
 _get_repo feeds/packages https://github.com/openwrt/packages "b35a2b5c8c6f0811a20643877a3f17159dc09fa2"
 _get_repo feeds/luci https://github.com/openwrt/luci "86fd703bae2089cfd0dd7e06c1dd20c4b956767a"
 
diff --git a/root/target/linux/generic/config-4.19 b/root/target/linux/generic/config-4.19
index 97839df6..75ece303 100644
--- a/root/target/linux/generic/config-4.19
+++ b/root/target/linux/generic/config-4.19
@@ -3832,6 +3832,8 @@ CONFIG_PPP_MULTILINK=y
 CONFIG_PREEMPT_NONE=y
 # CONFIG_PREEMPT_TRACER is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPTIRQ_EVENTS is not set
+# CONFIG_PREEMPTIRQ_DELAY_TEST is not set
 CONFIG_PREVENT_FIRMWARE_BUILD=y
 CONFIG_PRINTK=y
 CONFIG_PRINTK_NMI=y