diff --git a/vagrant/install.sh b/vagrant/install.sh
index e106898c..973b6a7e 100755
--- a/vagrant/install.sh
+++ b/vagrant/install.sh
@@ -28,8 +28,8 @@ mkdir -p /vagrant/storage/logs/system
 
 cd /vagrant
 
-/usr/local/bin/composer self-update
-composer install
+hhvm /usr/local/bin/composer self-update
+hhvm /usr/local/bin/composer install
 
 cp -n "/vagrant/resources/environments/.env.local" "/vagrant/.env"