diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-0.26.1.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-0.26.1.ebuild
index cc5a5067f3..1d2d0e3260 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-0.26.1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-0.26.1.ebuild
@@ -21,7 +21,7 @@ SLOT="0/11"
 IUSE="ctapi doc openct notify pace +pcsc-lite readline secure-messaging ssl test zlib"
 RESTRICT="!test? ( test )"
 
-RDEPEND="zlib? ( sys-libs/zlib )
+RDEPEND="zlib? ( virtual/zlib:= )
 	readline? ( sys-libs/readline:0= )
 	ssl? ( dev-libs/openssl:0= )
 	openct? ( >=dev-libs/openct-0.5.0 )
diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-9999.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-9999.ebuild
index 9d1c973983..54d1eb3b6a 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-9999.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/opensc/opensc-9999.ebuild
@@ -21,7 +21,7 @@ SLOT="0/11"
 IUSE="ctapi doc openct notify pace +pcsc-lite readline secure-messaging ssl test zlib"
 RESTRICT="!test? ( test )"
 
-RDEPEND="zlib? ( sys-libs/zlib )
+RDEPEND="zlib? ( virtual/zlib:= )
 	readline? ( sys-libs/readline:0= )
 	ssl? ( dev-libs/openssl:0= )
 	openct? ( >=dev-libs/openct-0.5.0 )