diff --git a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.40-r1.ebuild b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.40-r1.ebuild
index 6048598065..15ec4d6fce 100644
--- a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.40-r1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.40-r1.ebuild
@@ -10,10 +10,10 @@ APNG_VERSION="1.6.40"
 DESCRIPTION="Portable Network Graphics library"
 HOMEPAGE="http://www.libpng.org/"
 SRC_URI="
-	mirror://sourceforge/${PN}/${P}.tar.xz
+	https://downloads.sourceforge.net/${PN}/${P}.tar.xz
 	apng? (
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
 	)
 "
 
diff --git a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.42.ebuild b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.42.ebuild
index b198fcd653..2ce5a17416 100644
--- a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.42.ebuild
+++ b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.42.ebuild
@@ -10,10 +10,10 @@ APNG_VERSION="1.6.40"
 DESCRIPTION="Portable Network Graphics library"
 HOMEPAGE="http://www.libpng.org/"
 SRC_URI="
-	mirror://sourceforge/${PN}/${P}.tar.xz
+	https://downloads.sourceforge.net/${PN}/${P}.tar.xz
 	apng? (
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
 	)
 "
 
diff --git a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.43.ebuild b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.43.ebuild
index d8d9cd7bdd..10dfe2a0e1 100644
--- a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.43.ebuild
+++ b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.43.ebuild
@@ -10,10 +10,10 @@ APNG_VERSION="1.6.43"
 DESCRIPTION="Portable Network Graphics library"
 HOMEPAGE="http://www.libpng.org/"
 SRC_URI="
-	mirror://sourceforge/${PN}/${P}.tar.xz
+	https://downloads.sourceforge.net/${PN}/${P}.tar.xz
 	apng? (
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
-		mirror://sourceforge/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PV}/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
+		https://downloads.sourceforge.net/${APNG_REPO}/${PN}$(ver_rs 1-2 '' $(ver_cut 1-2 ${APNG_VERSION}))/${PN}-${APNG_VERSION}-apng.patch.gz -> ${PN}-${APNG_VERSION}-${APNG_REPO}-apng.patch.gz
 	)
 "