fix travis config.

diff --git a/.travis.yml b/.travis.yml
index 554df28..d3926bf 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,6 +20,8 @@ env:
 
 before_install:
   - phpenv config-rm xdebug.ini
+  - nvm install 8.9
+  - nvm use 8.9
   - cd ../..
   - composer create-project -n --no-dev --prefer-dist moodlerooms/moodle-plugin-ci ci ^2
   - export PATH="$(cd ci/bin; pwd):$(cd ci/vendor/bin; pwd):$PATH"