diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..92be2ee
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,3 @@
+FROM ruby:2.1.9-onbuild
+
+ENTRYPOINT ["./watch.rb"]
diff --git a/Gemfile b/Gemfile
index 93508ec..cc45987 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
-ruby '2.1.6'
+ruby '2.1.9'
 
 gem "octokit", "~> 3.0"
 gem 'thor', '0.19.1'
diff --git a/README.md b/README.md
index 4bcc79c..73352bf 100644
--- a/README.md
+++ b/README.md
@@ -64,3 +64,11 @@ docker run --rm -v ${PWD}:/scripts ruby:2.1 bash /scripts/build.sh
 ```
 
 For this you also let Jenkins clone this repository and then put that script into the build commands. The tool will now run in a ruby container which is disposed afterwards.
+
+## Docker support
+
+Besides using your local ruby installation you can also run the watch command in
+a Docker container like this:
+```bash
+docker run --rm -it Luzifer/github-masswatch [COMMAND]
+```