diff --git a/qa/Dockerfile b/qa/Dockerfile
index 9956ced0ef6..ca7f9accb70 100644
--- a/qa/Dockerfile
+++ b/qa/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:2.4-stretch
+FROM ruby:2.5-stretch
 LABEL maintainer "Grzegorz Bizon <grzegorz@gitlab.com>"
 ENV DEBIAN_FRONTEND noninteractive