diff --git a/Dockerfile.gitlab-docs-lint b/Dockerfile.gitlab-docs-lint
index 5b666b6..3720d41 100644
--- a/Dockerfile.gitlab-docs-lint
+++ b/Dockerfile.gitlab-docs-lint
@@ -1,4 +1,4 @@
-FROM ruby:2.5.3-alpine3.8
+FROM ruby:2.6.3-alpine3.8
 MAINTAINER GitLab Documentation Team
 
 WORKDIR /tmp