diff --git a/chrome/content/zotero/xpcom/sync.js b/chrome/content/zotero/xpcom/sync.js
index 162eaefcd..c46dcd308 100644
--- a/chrome/content/zotero/xpcom/sync.js
+++ b/chrome/content/zotero/xpcom/sync.js
@@ -728,7 +728,7 @@ Zotero.Sync.Server = new function () {
 		}
 		
 		// Set auto-sync expiry
-		var expiry = new Date("July 4, 2009 00:00:00");
+		var expiry = new Date("September 5, 2009 00:00:00");
 		if (new Date() > expiry) {
 			Components.utils.reportError("Build has expired -- auto-sync disabled");
 			return false;