diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/update_engine/update_engine-9999.ebuild b/sdk_container/src/third_party/coreos-overlay/coreos-base/update_engine/update_engine-9999.ebuild
index d289b79f11..a15c55b847 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/update_engine/update_engine-9999.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/coreos-base/update_engine/update_engine-9999.ebuild
@@ -9,7 +9,7 @@ AUTOTOOLS_AUTORECONF=1
 if [[ "${PV}" == 9999 ]]; then
 	KEYWORDS="~amd64 ~arm ~arm64 ~x86"
 else
-	CROS_WORKON_COMMIT="c3e515c2b76f5bed4f624c5b4d1c56663ac9d048" # v0.4.10
+	CROS_WORKON_COMMIT="efee1cb9223dbf017379d3644a265b3491a73c8a" # flatcar-master
 	KEYWORDS="amd64 arm64"
 fi