diff --git a/Dockerfile.danger b/Dockerfile.danger
index c3485c9..26e8909 100644
--- a/Dockerfile.danger
+++ b/Dockerfile.danger
@@ -1,4 +1,4 @@
-FROM ruby:2.7.4
+FROM ruby:2.7.4-buster
 MAINTAINER GitLab Quality Team
 
 # Danger manipulates git diff output. When a unicode char is present in the diff, it chokes with