diff --git a/dist/firefox/updates.json b/dist/firefox/updates.json
index a59c2fd79..449e5327f 100644
--- a/dist/firefox/updates.json
+++ b/dist/firefox/updates.json
@@ -3,10 +3,10 @@
   "uBlock0@raymondhill.net": {
    "updates": [
     {
-     "version": "1.21.9.0",
+     "version": "1.21.9.1",
      "browser_specific_settings": { "gecko": { "strict_min_version": "55" } },
-     "update_info_url": "https://github.com/gorhill/uBlock/releases/tag/1.21.9b0",
-     "update_link": "https://github.com/gorhill/uBlock/releases/download/1.21.9b0/uBlock0_1.21.9b0.firefox.signed.xpi"
+     "update_info_url": "https://github.com/gorhill/uBlock/releases/tag/1.21.9b1",
+     "update_link": "https://github.com/gorhill/uBlock/releases/download/1.21.9b1/uBlock0_1.21.9b1.firefox.signed.xpi"
     }
    ]
   }