diff --git a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.39.ebuild b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.39.ebuild
index f1c9336b51..c8fece5213 100644
--- a/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.39.ebuild
+++ b/sdk_container/src/third_party/portage-stable/media-libs/libpng/libpng-1.6.39.ebuild
@@ -13,7 +13,7 @@ SRC_URI+=" apng? ( mirror://sourceforge/libpng-apng/${PN}$(ver_rs 1-2 '' $(ver_c
 
 LICENSE="libpng2"
 SLOT="0/16"
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 IUSE="apng cpu_flags_arm_neon cpu_flags_x86_sse static-libs"
 
 RDEPEND=">=sys-libs/zlib-1.2.8-r1:=[${MULTILIB_USEDEP}]"