diff --git a/platform/osx/scripts/configure.sh b/platform/osx/scripts/configure.sh
index 0b431de89..77fe9226d 100644
--- a/platform/osx/scripts/configure.sh
+++ b/platform/osx/scripts/configure.sh
@@ -4,8 +4,6 @@ BOOST_VERSION=1.59.0
 BOOST_LIBPROGRAM_OPTIONS_VERSION=1.59.0
 LIBCURL_VERSION=system
 GLFW_VERSION=3.1.2
-LIBPNG_VERSION=1.6.20
-JPEG_VERSION=v9a
 SQLITE_VERSION=3.9.1
 LIBUV_VERSION=1.7.5
 ZLIB_VERSION=system