diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 90b8ecca76f3d41e07ff2e2ffb05cd67098484fe..9e1feb931882c27e2f060b3b6c0267f4c86929b7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,5 +1,5 @@
 default:
-  image: ruby:2.6
+  image: docker:20.10.16
 
   services:
     - postgres:11.7