From 4bfdbb736d7d4d93c36e6775b3f2285a16d49271 Mon Sep 17 00:00:00 2001
From: Patrik Ragnarsson <patrik@starkast.net>
Date: Mon, 17 Jan 2022 22:47:16 +0100
Subject: [PATCH] Use Ruby 3.1 in our Dockerfile (#2802)

Ruby 2.6 reaches EoL soon.

[ci skip]
---
 CONTRIBUTING.md  | 2 +-
 tools/Dockerfile | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3e23cbb6d0..ca2cca5745 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -156,7 +156,7 @@ bundle exec puma -C test/config/settings.rb test/rackup/hello.ru
 
 There is also a Dockerfile available for reproducing Linux-specific issues:
 ```sh
-docker build -f tools/docker/Dockerfile -t puma .
+docker build -f tools/Dockerfile -t puma .
 docker run -p 9292:9292 -it puma
 ```
 
diff --git a/tools/Dockerfile b/tools/Dockerfile
index af2fb0e269..bf61657001 100644
--- a/tools/Dockerfile
+++ b/tools/Dockerfile
@@ -1,6 +1,6 @@
 # Use this Dockerfile to create minimal reproductions of issues
 
-FROM ruby:2.6
+FROM ruby:3.1
 
 # throw errors if Gemfile has been modified since Gemfile.lock
 RUN bundle config --global frozen 1