diff --git a/ReleaseNotes.html b/ReleaseNotes.html
index bdd1fbc730..67d35005cc 100644
--- a/ReleaseNotes.html
+++ b/ReleaseNotes.html
@@ -201,7 +201,7 @@ <h3>Removal of deprecated functionality</h3>
       </li>
     </ul>
 
-<h2>Release 3.3.8 (July 2017)</h2>
+<h2>Release 3.3.8 (August 2017)</h2>
 <p>
   This release consists of bug fixes and some new features:
 </p>