diff --git a/README.md b/README.md
index fecd8523c6..5884ae1db7 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ A miniblog-based SNS.
 * Redis
 * GraphicsMagick
 
-## Optional dependencies
+### Optional
 * Elasticsearch
 
 ## Get started