diff --git a/package.json b/package.json
index 7866e75..e208d61 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   },
   "homepage": "https://github.com/windingwind/zotero-addon-template#readme",
   "releasepage": "https://github.com/windingwind/zotero-addon-template/releases/latest/download/zotero-addon-template.xpi",
-  "updaterdf": "https://raw.githubusercontent.com/windingwind/zotero-addon-template/master/update.rdf",
+  "updaterdf": "https://raw.githubusercontent.com/windingwind/zotero-addon-template/master/update.json",
   "dependencies": {
     "compressing": "^1.5.1",
     "esbuild": "^0.14.34",
diff --git a/src/prefs.ts b/src/prefs.ts
index ac2b0d7..4f10cfc 100644
--- a/src/prefs.ts
+++ b/src/prefs.ts
@@ -1,5 +1,6 @@
-import { Addon, addonName } from "./addon";
+import Addon from "./addon";
 import AddonModule from "./module";
+import { addonName } from "../package.json";
 
 class AddonPrefs extends AddonModule {
   private _window: Window;