diff --git a/_cache_service_worker.js b/_cache_service_worker.js
index f71307c..a10b242 100644
--- a/_cache_service_worker.js
+++ b/_cache_service_worker.js
@@ -14,7 +14,7 @@
 */
 
 var PRECACHE_ID='rom-patcher-js';
-var PRECACHE_VERSION='v29';
+var PRECACHE_VERSION='v291';
 var PRECACHE_URLS=[
 	'/RomPatcher.js/','/RomPatcher.js/index.html',
 	'/RomPatcher.js/manifest.json',
diff --git a/index.html b/index.html
index 12f7b2b..1f41641 100644
--- a/index.html
+++ b/index.html
@@ -181,7 +181,7 @@
 		<button id="button-settings" class="button-outer"><img src="style/icon_settings.svg" class="icon settings" /> <span data-localize="settings">Settings</span></button>
 	</div>
 
-	Rom Patcher JS <small>v2.9</small> by <a href="/">Marc Robledo</a>
+	Rom Patcher JS <small>v2.9.1</small> by <a href="/">Marc Robledo</a>
 	<br />
 	<img src="style/icon_github.svg" class="icon github" /> <a href="https://github.com/marcrobledo/RomPatcher.js/" target="_blank">See on GitHub</a>
 	<img src="style/icon_heart.svg" class="icon heart" /> <a href="https://www.paypal.me/marcrobledo/5" target="_blank" rel="nofollow">Donate</a>
diff --git a/js/formats/zip.js b/js/formats/zip.js
index f5c28f0..46dba1e 100644
--- a/js/formats/zip.js
+++ b/js/formats/zip.js
@@ -1,4 +1,4 @@
-/* ZIP module for Rom Patcher JS v20220319 - Marc Robledo 2016-2022 - http://www.marcrobledo.com/license */
+/* ZIP module for Rom Patcher JS v20230721 - Marc Robledo 2016-2024 - http://www.marcrobledo.com/license */
 
 const ZIP_MAGIC='\x50\x4b\x03\x04';
 
@@ -51,6 +51,16 @@ var ZIPManager=(function(){
 								filteredEntries.push(zipEntries[i]);
 							}
 						}
+						/* sort patch files by name and folder */
+						filteredEntries
+							.sort(function(file1, file2){
+								return file1.filename.toLowerCase().localeCompare(file2.filename.toLowerCase());
+							})
+							.sort(function(file1, file2){
+								var file1Folder=file1.filename.indexOf('/')===-1? 0 : 1;
+								var file2Folder=file2.filename.indexOf('/')===-1? 0 : 1;
+								return file1Folder - file2Folder;
+							});