diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 124315b5..b5e251c0 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -59,3 +59,10 @@ More involved documentation, tutorials, and usage examples should go
 into the wiki.
 * <https://github.com/q9f/eth.rb/wiki>
 
+### Building
+
+We use github runners to run automated tests.
+
+This uses the secrets in your fork.
+
+Set the DRPC_TOKEN as a repository secret to help get the builds working for PRs.