diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
index f4d020d49b..cca713e043 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/Manifest
@@ -1 +1 @@
-DIST syslinux-4.07.tar.bz2 5761877 BLAKE2B 2fe28f268f896601a045564b1e3dde618d57ebf4098d007f7e45119ad019fa88221658608f88e55d4d09cd297140427cdeaf03a40a2341d732064a0630fe92b5 SHA512 8efbd14803ec74c5ee699a754b4727e4b975c08afd4dbb39f4b7ccdb90743e4459cd4609c6f1065c7b7efaa26c9d465806254891795d363758f35a2fe5704ae5
+DIST syslinux-4.07.tar.xz 4580396 BLAKE2B 56f03796cab74be62cfb6288cba2fba79bae5ac78309a43cc7efe17a4957d50606cb6c23f5d5436631e3f279882125d82f11abf524c9cc94cbf4748e67753086 SHA512 fc29def8e79f161babfe989f93bcd8bb521b2edb143c88a121b8d8876a9b94b8ac5784e5898b56e28dacb52830259de28a34ecbf787c9295231a074a37e5a57a
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-4.07-r3.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-4.07-r3.ebuild
index 5b1907b153..80ed6b5657 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-4.07-r3.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-boot/syslinux/syslinux-4.07-r3.ebuild
@@ -7,7 +7,8 @@ inherit eutils toolchain-funcs
 
 DESCRIPTION="SYSLINUX, PXELINUX, ISOLINUX, EXTLINUX and MEMDISK bootloaders"
 HOMEPAGE="https://syslinux.zytor.com/"
-SRC_URI="mirror://kernel/linux/utils/boot/syslinux/${PV:0:1}.xx/${P/_/-}.tar.bz2"
+SRC_URI_DIR="${PV:0:1}.xx"
+SRC_URI="https://www.kernel.org/pub/linux/utils/boot/syslinux/${SRC_URI_DIR}/${P/_/-}.tar.xz"
 
 LICENSE="GPL-2"
 SLOT="0"