diff --git a/README.md b/README.md
index 38c9277a6..9ae67aab2 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Outline requires the following dependencies:
 
 - Postgres >=9.5
 - Redis
-- Slack developer application
+- Slack or Google developer application for OAuth
 
 In development you can quickly get an environment running using Docker by following these steps: