diff --git a/sources.json b/sources.json
index 9c274a4..91dc0e1 100644
--- a/sources.json
+++ b/sources.json
@@ -21,8 +21,8 @@
   },
   "firefox-nightly": {
     "version": "133.0a1",
-    "url": "https://download-installer.cdn.mozilla.net/pub/firefox/nightly/2024/10/2024-10-18-21-14-52-mozilla-central/firefox-133.0a1.en-US.mac.dmg",
-    "sha256": "a5b33ca2aa87d43e20542740b7d85eb867c2443973ef91308282b9a48d7b55fd"
+    "url": "https://download-installer.cdn.mozilla.net/pub/firefox/nightly/2024/10/2024-10-19-21-49-45-mozilla-central/firefox-133.0a1.en-US.mac.dmg",
+    "sha256": "4a8476ea5cb35eaf18db428c24f6ba579f3f303b24b18de958c046bab1d8a917"
   },
   "librewolf-arm64": {
     "version": "131.0.3-1",