diff --git a/src/electron/build/notarize.js b/src/electron/build/notarize.cjs
similarity index 100%
rename from src/electron/build/notarize.js
rename to src/electron/build/notarize.cjs
diff --git a/src/electron/electron-builder.json5 b/src/electron/electron-builder.json5
index f94cd1ec..b08cf2ce 100644
--- a/src/electron/electron-builder.json5
+++ b/src/electron/electron-builder.json5
@@ -18,7 +18,7 @@
     owner: "HASEL-UZH",
     repo: "PersonalAnalytics",
   },
-  afterSign: 'build/notarize.js',
+  afterSign: 'build/notarize.cjs',
   mac: {
     target: [
       'dmg'