diff --git a/travis.sh b/travis.sh
index 5a060c3c..bb50d543 100755
--- a/travis.sh
+++ b/travis.sh
@@ -121,6 +121,7 @@ else
 fi
 
 if [[ $EXTERNAL_TEST = regent ]]; then
+    sudo apt-get install -qq libblas-dev liblapack-dev
     git clone -b master https://github.com/StanfordLegion/legion.git
     cd legion
     export REALM_SYNTHETIC_CORE_MAP=