diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8447aef835ec3a9c2378302b3d45828520d0568a..03aeae5b6507f5da513a1ea0c910c7b2c52cbfb9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -3,6 +3,8 @@ stages:
 
 test_job:
   stage: test
+  before_script:
+    - vagrant plugin install vagrant-disksize
   script: 
     - vagrant --fixture=scripts -- up
     - vagrant --fixture=scripts -- ssh -- "cd /vagrant && pytest test/scripts/"