diff --git a/src/manifest.json b/src/manifest.json
index 2483426..7402c41 100644
--- a/src/manifest.json
+++ b/src/manifest.json
@@ -9,7 +9,7 @@
     },
     "gecko_android": {}
   },
-  "version": "11.4.39rc3",
+  "version": "11.4.39rc4",
   "description": "__MSG_Description__",
   "incognito": "spanning",