diff --git a/sources.json b/sources.json
index 3e1d61e..2d283fd 100644
--- a/sources.json
+++ b/sources.json
@@ -21,7 +21,7 @@
   },
   "firefox-nightly": {
     "version": "122.0a1",
-    "url": "https://download-installer.cdn.mozilla.net/pub/firefox/nightly/2023/12/2023-12-17-21-05-22-mozilla-central/firefox-122.0a1.en-US.mac.dmg",
-    "sha256": "21dbdef9ca9c08aeb10c08a398e064241b28b21cead9a9ed025247f5041e0c88"
+    "url": "https://download-installer.cdn.mozilla.net/pub/firefox/nightly/2023/12/2023-12-18-09-25-24-mozilla-central/firefox-122.0a1.en-US.mac.dmg",
+    "sha256": "88e336793731ec76af7dc478116bb50cc42ded8a4379e2695d0372125623d197"
   }
 }