diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 63e57ee4..9b5969ab 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -23,6 +23,10 @@ Anything else - [search open issues](https://github.com/github/markup/issues) or
 5. Open a [Pull Request][1]
 6. Enjoy a refreshing Diet Coke and wait
 
+**dependencies**
+
+You can run `script/bootstrap.contrib` to fetch them all.
+
 ## Testing
 
 To run the tests:
diff --git a/script/bootstrap.contrib b/script/bootstrap.contrib
new file mode 100755
index 00000000..834b6b61
--- /dev/null
+++ b/script/bootstrap.contrib
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+set -e
+
+cd $(dirname "$0")/..
+
+bundle install --path vendor/bundle
+virtualenv vendor/python && source vendor/python/bin/activate
+pip install docutils
+
+echo ""
+echo "*** DONE ***"
+echo ""
+echo "activate python environment with 'source vendor/python/bin/activate'"
+echo "run tests with 'bundle exec rake'"