update Ruby version to 2.2.4 (latest previous stable) and update docs

2 files changed, 4 insertions, 4 deletions

diff --git a/doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md b/doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md
index e52e1547461..c1bb47e4291 100644
--- a/doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md
+++ b/doc/ci/examples/test-and-deploy-ruby-application-to-heroku.md
@@ -56,12 +56,12 @@ gitlab-ci-multi-runner register \
   --non-interactive \
   --url "https://gitlab.com/ci/" \
   --registration-token "PROJECT_REGISTRATION_TOKEN" \
-  --description "ruby-2.1" \
+  --description "ruby-2.2" \
   --executor "docker" \
-  --docker-image ruby:2.1 \
+  --docker-image ruby:2.2 \
   --docker-postgres latest
 ```
 
-With the command above, you create a runner that uses [ruby:2.1](https://registry.hub.docker.com/u/library/ruby/) image and uses [postgres](https://registry.hub.docker.com/u/library/postgres/) database.
+With the command above, you create a runner that uses [ruby:2.2](https://registry.hub.docker.com/u/library/ruby/) image and uses [postgres](https://registry.hub.docker.com/u/library/postgres/) database.
 
 To access PostgreSQL database you need to connect to `host: postgres` as user `postgres` without password.
diff --git a/doc/ci/yaml/README.md b/doc/ci/yaml/README.md
index fd0d49de4e4..779b9db6486 100644
--- a/doc/ci/yaml/README.md
+++ b/doc/ci/yaml/README.md
@@ -33,7 +33,7 @@ The YAML syntax allows for using more complex job specifications than in the
 above example:
 
 ```yaml
-image: ruby:2.1
+image: ruby:2.2
 services:
   - postgres