diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/Manifest b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/Manifest
index 19b70505d5..f11ead0a94 100644
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/Manifest
@@ -1,4 +1 @@
-DIST docker-proxy-0.8.0_p20161019.tar.gz 2112423 BLAKE2B 8ce90c6dd0184773c1e2c4e31304e8a67c2c571d1ceb62b2a66c92ce277ba73ea2243e8414fbc769501bf76cb79fe890d3d0c7a0ef00d7e2889e20b6982b555e SHA512 a7b040cdeaf15054d436b184370af0f9b23a5b6d0b2c01530b7ad539040186888bb030309e18a1a02ad252753cf4f08aa5e5ec504480a8ffb7050db76764db5b
-DIST docker-proxy-0.8.0_p20170917.tar.gz 2177045 BLAKE2B 0fed1328e8216ab83b23e8e1fe1793da6e874eced7ad18d101b0b7757f1de4fa7d321fb78620a349a4ed492abb4d85c3ecbf49311698b6af156a6255dec5740e SHA512 673ea638fa5c560d8238d7c1d88f114430f9d8efe701804bfe30044d0c059a688cbf6b62922be50834e16ee055ef6cf015f6232f76f0d942768f9e84e95496cd
-DIST docker-proxy-0.8.0_p20180709.tar.gz 2718698 BLAKE2B 6214ba714ba8b01214168171f465dfaee4d8ff791db7a219a3fb92fade3e4207d36d90090790c0a3059e6fb209f3cd8bb0082ca75496108ebffb7c9b0c5092a4 SHA512 21d3d1bd8aafeab51a3e0a14ada4d559b5b113a48d315e91f7d70e4fa839f5c92d4068b38c28bf6929da9c11cfc61703bafc7148f64b784208d61fa14ee4545d
-DIST docker-proxy-0.8.0_p20210525.tar.gz 3154432 BLAKE2B 3f273cd4c2dd3c797117bebfe06eb3ae8ce3b3f70d495cb0c77a372d64e23f1d9ad31e8efef64df494cc462e9f4fda9311c99ae7e7218f0fc41b6bf44cf8c08d SHA512 6a94fe23ce1bab0a428ee4bbe20089f5a4470e72c5da156b2b1a89de01cca803374fd9cdcd4c5b25b86af1c4e956c75a1a5ad7fb6639def7bcec69859a77c047
+DIST docker-proxy-0.8.0_p20210525.tar.gz 3154432 BLAKE2B 3f273cd4c2dd3c797117bebfe06eb3ae8ce3b3f70d495cb0c77a372d64e23f1d9ad31e8efef64df494cc462e9f4fda9311c99ae7e7218f0fc41b6bf44cf8c08d SHA512 6a94fe23ce1bab0a428ee4bbe20089f5a4470e72c5da156b2b1a89de01cca803374fd9cdcd4c5b25b86af1c4e956c75a1a5ad7fb6639def7bcec69859a77c047
\ No newline at end of file
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20161019.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20161019.ebuild
deleted file mode 100644
index b0f33d7708..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20161019.ebuild
+++ /dev/null
@@ -1,42 +0,0 @@
-# Copyright 1999-2017 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=6
-EGO_PN="github.com/docker/libnetwork"
-
-COREOS_GO_PACKAGE="${EGO_PN}"
-COREOS_GO_VERSION="go1.7"
-
-if [[ ${PV} == *9999 ]]; then
-	KEYWORDS="~amd64 ~arm64"
-	inherit golang-vcs
-else
-	EGIT_COMMIT="0f534354b813003a754606689722fe253101bc4e"
-	SRC_URI="https://${EGO_PN}/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
-	KEYWORDS="amd64 arm64"
-	inherit golang-vcs-snapshot
-fi
-
-inherit coreos-go
-
-DESCRIPTION="Docker container networking"
-HOMEPAGE="https://github.com/docker/libnetwork"
-
-LICENSE="Apache-2.0"
-SLOT="0"
-IUSE=""
-
-S=${WORKDIR}/${P}/src/${EGO_PN}
-
-RDEPEND="!<app-emulation/docker-1.13.0_rc1"
-
-RESTRICT="test" # needs dockerd
-
-src_compile() {
-	go_build "${COREOS_GO_PACKAGE}/cmd/proxy"
-}
-
-src_install() {
-	dodoc ROADMAP.md README.md CHANGELOG.md
-	newbin "${GOBIN}"/proxy docker-proxy
-}
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20170917.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20170917.ebuild
deleted file mode 100644
index 6b26f5b4a1..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20170917.ebuild
+++ /dev/null
@@ -1,42 +0,0 @@
-# Copyright 1999-2017 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=6
-EGO_PN="github.com/docker/libnetwork"
-
-COREOS_GO_PACKAGE="${EGO_PN}"
-COREOS_GO_VERSION="go1.8"
-
-if [[ ${PV} == *9999 ]]; then
-	KEYWORDS="~amd64 ~arm64"
-	inherit golang-vcs
-else
-	EGIT_COMMIT="7b2b1feb1de4817d522cc372af149ff48d25028e"
-	SRC_URI="https://${EGO_PN}/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
-	KEYWORDS="amd64 arm64"
-	inherit golang-vcs-snapshot
-fi
-
-inherit coreos-go
-
-DESCRIPTION="Docker container networking"
-HOMEPAGE="https://github.com/docker/libnetwork"
-
-LICENSE="Apache-2.0"
-SLOT="0"
-IUSE=""
-
-S=${WORKDIR}/${P}/src/${EGO_PN}
-
-RDEPEND="!<app-emulation/docker-1.13.0_rc1"
-
-RESTRICT="test" # needs dockerd
-
-src_compile() {
-	go_build "${COREOS_GO_PACKAGE}/cmd/proxy"
-}
-
-src_install() {
-	dodoc ROADMAP.md README.md CHANGELOG.md
-	newbin "${GOBIN}"/proxy docker-proxy
-}
diff --git a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20180709.ebuild b/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20180709.ebuild
deleted file mode 100644
index 6705098ff5..0000000000
--- a/sdk_container/src/third_party/coreos-overlay/app-emulation/docker-proxy/docker-proxy-0.8.0_p20180709.ebuild
+++ /dev/null
@@ -1,42 +0,0 @@
-# Copyright 1999-2018 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=6
-EGO_PN="github.com/docker/libnetwork"
-
-COREOS_GO_PACKAGE="${EGO_PN}"
-COREOS_GO_VERSION="go1.13"
-
-if [[ ${PV} == *9999 ]]; then
-	KEYWORDS="~amd64 ~arm64"
-	inherit golang-vcs
-else
-	EGIT_COMMIT="3ac297bc7fd0afec9051bbb47024c9bc1d75bf5b"
-	SRC_URI="https://${EGO_PN}/archive/${EGIT_COMMIT}.tar.gz -> ${P}.tar.gz"
-	KEYWORDS="amd64 arm64"
-	inherit golang-vcs-snapshot
-fi
-
-inherit coreos-go
-
-DESCRIPTION="Docker container networking"
-HOMEPAGE="https://github.com/docker/libnetwork"
-
-LICENSE="Apache-2.0"
-SLOT="0"
-IUSE=""
-
-S=${WORKDIR}/${P}/src/${EGO_PN}
-
-RDEPEND="!<app-emulation/docker-1.13.0_rc1"
-
-RESTRICT="test" # needs dockerd
-
-src_compile() {
-	go_build "${COREOS_GO_PACKAGE}/cmd/proxy"
-}
-
-src_install() {
-	dodoc ROADMAP.md README.md CHANGELOG.md
-	newbin "${GOBIN}"/proxy docker-proxy
-}