diff --git a/chromeos/binhost/host/sdk_version.conf b/chromeos/binhost/host/sdk_version.conf
index 552d91d..3990de4 100644
--- a/chromeos/binhost/host/sdk_version.conf
+++ b/chromeos/binhost/host/sdk_version.conf
@@ -1,9 +1,9 @@
 # The last version of the sdk that we built & tested.
-SDK_LATEST_VERSION="2021.08.16.182546"
+SDK_LATEST_VERSION="85/13310.1498.4/sdk/cros-sdk-13310.1498.4"
 
 # How to find the standalone toolchains from the above sdk.
-TC_PATH="2021/08/%(target)s-2021.08.16.182546.tar.xz"
+TC_PATH="85/13310.1498.4/sdk/toolchain-pkgs/%(target)s.tar.xz"
 
 # Frozen version of SDK used for bootstrapping.
 # If unset, SDK_LATEST_VERSION will be used for bootstrapping.
-BOOTSTRAP_FROZEN_VERSION="2020.05.12.075654"
+BOOTSTRAP_FROZEN_VERSION="85/13310.1498.4/sdk/cros-sdk-13310.1498.4"
diff --git a/chromeos/config/make.conf.amd64-host b/chromeos/config/make.conf.amd64-host
index 30dec87..b715ec7 100644
--- a/chromeos/config/make.conf.amd64-host
+++ b/chromeos/config/make.conf.amd64-host
@@ -21,7 +21,7 @@
 PORT_LOGDIR="/var/log/portage"
 
 source /usr/local/portage/chromiumos/chromeos/binhost/host/amd64-PREFLIGHT_BINHOST.conf
-FULL_BINHOST="gs://chromeos-prebuilt/host/amd64/amd64-host/chroot-2021.08.16.182546/packages/"
+FULL_BINHOST="gs://cos-prebuilt/85/13310.1498.4/sdk"
 PORTAGE_BINHOST="$PREFLIGHT_BINHOST $FULL_BINHOST"
 
 GENTOO_MIRRORS="https://commondatastorage.googleapis.com/chromeos-localmirror"