diff --git a/_cache_service_worker.js b/_cache_service_worker.js
index f89dedb..fce3417 100644
--- a/_cache_service_worker.js
+++ b/_cache_service_worker.js
@@ -12,7 +12,7 @@ limitations under the License.
 mod by marcrobledo, original from: https://github.com/GoogleChrome/samples/blob/gh-pages/service-worker/basic/service-worker.js
 */
 
-const PRECACHE_ID='v20180511';
+const PRECACHE_ID='v20180830';
 const PRECACHE_FILES=[
 'index.html','./',
 'RomPatcher.css',
diff --git a/index.html b/index.html
index 6f2e0d7..46bdaf2 100644
--- a/index.html
+++ b/index.html
@@ -57,7 +57,7 @@
 		<div class="row" title="Compatible formats: IPS, UPS, APS and BPS">
 			<div class="leftcol"><label for="input-file-patch">Patch file:</label></div>
 			<div class="rightcol">
-				<input type="file" id="input-file-patch" />
+				<input type="file" id="input-file-patch" accept=".ips,.ups,.bps,.aps"/>
 			</div>
 		</div>