Update download link to point to 6.4.2

Change-Id: I72478b577524696229eada33f9cc63436cead3f3
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>
diff --git a/download.html b/download.html
index 27f92ac..242ceec 100644
--- a/download.html
+++ b/download.html
@@ -120,8 +120,8 @@
 
 							<h3>Latest Release</h3>
 							<p>Add this URL to your Eclipse Installation to reach Sirius Update Site.</p>
-							<input type="text" value="http://download.eclipse.org/sirius/updates/releases/6.4.1/2020-06" />
-							<p>You can also download the corresponding <a href="http://download.eclipse.org/sirius/updates/releases/6.4.1/org.eclipse.sirius-6.4.1-2020-06.zip">zipped archive</a> for offline installation.</p>
+							<input type="text" value="http://download.eclipse.org/sirius/updates/releases/6.4.2/2020-06" />
+							<p>You can also download the corresponding <a href="http://download.eclipse.org/sirius/updates/releases/6.4.2/org.eclipse.sirius-6.4.2-2020-06.zip">zipped archive</a> for offline installation.</p>
 							<br />
 
 							<h3>Latest Nightly</h3>