diff --git a/docs/index.html b/docs/index.html
index 9282bd4ee..272b90831 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -31,7 +31,7 @@
 <main><div class="container">
   <h1>Ebiten</h1>
   <p class="lead">A simple 2D game library in Go</p>
-  <p>Stable version: v1.5.0 / Development version: v1.6.0-alpha</p>
+  <p>Stable version: v1.5.1 / Development version: v1.6.0-alpha</p>
 
   <h2 id="platforms">Platforms</h2>
   <dl class="dl-horizontal">