ACTF 1.5.1
diff --git a/docs/index.php b/docs/index.php
index 6b7a9e1..69f0781 100644
--- a/docs/index.php
+++ b/docs/index.php
@@ -67,8 +67,8 @@
<div class="homeitem3col">
<h3>Technical documentation for contributors/committers</h3>
<ul>
- <li>Accessibility check items in ACTF Visualization SDK (<a href="./developers/ACTF_1_3_1_Checkitems.xlsx"><img src="../images/go-bottom.png" alt="Download"> in Excel format)</a><br>
- (Japanese version is also available. (<a href="./developers/ACTF_1_3_1_Checkitems_ja.xlsx"><img src="../images/go-bottom.png" alt="Download"> in Excel format</a>)</li>
+ <li>Accessibility check items in ACTF Visualization SDK (<a href="./developers/ACTF_1_5_1_Checkitems.xlsx"><img src="../images/go-bottom.png" alt="Download"> in Excel format)</a><br>
+ (Japanese version is also available. (<a href="./developers/ACTF_1_5_1_Checkitems_ja.xlsx"><img src="../images/go-bottom.png" alt="Download"> in Excel format</a>)</li>
<li>Example: <a href="../downloads/tools/htmlchecker/">HTML Checker development instruction</a></li>
</ul>
<p>Please see online help and API reference from