Index: libraries/osx/build-osx-libs.sh
===================================================================
--- libraries/osx/build-osx-libs.sh
+++ libraries/osx/build-osx-libs.sh
@@ -23,7 +23,8 @@
 ZLIB_VERSION="zlib-1.2.11"
 CURL_VERSION="curl-7.54.0"
 ICONV_VERSION="libiconv-1.15"
-XML2_VERSION="libxml2-2.9.4"
+# Use a developmental snapshot to fix potentially exploitable vulnerabilities in libxml2 2.9.4
+XML2_VERSION="libxml2-932cc9896ab41475d4aa429c27d9afd175959d74"
 SDL2_VERSION="SDL2-2.0.5"
 BOOST_VERSION="boost_1_64_0"
 # NOTE: remember to also update LIB_URL below when changing version
@@ -239,7 +240,7 @@
 LIB_VERSION="${XML2_VERSION}"
 LIB_ARCHIVE="$LIB_VERSION.tar.gz"
 LIB_DIRECTORY="$LIB_VERSION"
-LIB_URL="ftp://xmlsoft.org/libxml2/"
+LIB_URL="https://git.gnome.org/browse/libxml2/snapshot/"
 
 mkdir -p libxml2
 pushd libxml2 > /dev/null