diff --git a/reference-manual.html b/reference-manual.html
index 8376b0b..8d07206 100644
--- a/reference-manual.html
+++ b/reference-manual.html
@@ -24,7 +24,7 @@
 <div><h1 class="title">
 <a name="reference-manual"></a>Part II. Reference manual</h1></div>
 <div><p class="releaseinfo">
-        This document is for HarfBuzz 8.5.0
+        This document is for HarfBuzz 9.0.0
 .
         
       </p></div>