diff --git a/.trustie-pipeline.yml b/.trustie-pipeline.yml
index 9d2d5bd7..916fadf6 100644
--- a/.trustie-pipeline.yml
+++ b/.trustie-pipeline.yml
@@ -10,6 +10,7 @@ steps:
 - name: install
   image: ruby:2.4.5
   commands:
+  - gem install bundler
   - bundle -v
   - bundle  install --jobs=1 --retry=1
   - rake