diff --git a/service-worker.js b/service-worker.js
index 9c53e14f..d0b6b64c 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -29,7 +29,7 @@
  * download and install a new copy; we have to hard code this here because it is needed before any other file
  * is cached in APP_CACHE
  */
-const appVersion = '1.9.0';
+const appVersion = '1.9.1';
 
 /**
  * The name of the Cache API cache in which assets defined in regexpCachedContentTypes will be stored
diff --git a/www/js/init.js b/www/js/init.js
index a51fbbe7..649bb8ca 100644
--- a/www/js/init.js
+++ b/www/js/init.js
@@ -50,7 +50,7 @@ var params = {};
  */
 var appstate = {};
 /******** UPDATE VERSION IN service-worker.js TO MATCH VERSION AND CHECK PWASERVER BELOW!!!!!!! *******/
-params['appVersion'] = "1.9.0"; //DEV: Manually update this version when there is a new release: it is compared to the Settings Store "appVersion" in order to show first-time info, and the cookie is updated in app.js
+params['appVersion'] = "1.9.1"; //DEV: Manually update this version when there is a new release: it is compared to the Settings Store "appVersion" in order to show first-time info, and the cookie is updated in app.js
 /******* UPDATE THIS ^^^^^^ IN service worker AND PWA-SERVER BELOW !! ********************/
 params['packagedFile'] = getSetting('packagedFile') || "wikipedia_en_100_nopic_2021-12.zim"; //For packaged Kiwix JS (e.g. with Wikivoyage file), set this to the filename (for split files, give the first chunk *.zimaa) and place file(s) in default storage
 params['archivePath'] = "archives"; //The directory containing the packaged archive(s) (relative to app's root directory)