diff --git a/BUILD.sh b/BUILD.sh
index c919206..12116d0 100755
--- a/BUILD.sh
+++ b/BUILD.sh
@@ -171,6 +171,7 @@
 if $runMkcontainer; then
     sudo apt-get install -y libxml2-dev libxslt-dev
     sudo /usr/rift/container_tools/mkcontainer --modes build --modes ext --repo ${PLATFORM_REPOSITORY}
+    sudo pip3 install -y lxml==3.4.0
 fi