diff --git a/travis/setup-webserver.sh b/travis/setup-webserver.sh
index d9c6b370a1..6612b2c4bb 100755
--- a/travis/setup-webserver.sh
+++ b/travis/setup-webserver.sh
@@ -19,6 +19,9 @@ APP_SOCK=$(realpath "$DIR")/php-app.sock
 
 if [ "$TRAVIS_PHP_VERSION" = 'hhvm' ]
 then
+	# Upgrade to a recent stable version of HHVM
+	sudo apt-get install -y hhvm
+
 	HHVM_LOG=$(realpath "$DIR")/hhvm.log
 
 	sudo hhvm \