Use MappingProxyType For Asset Map

Signed-off-by: Hassan Abouelela <[email protected]>

1 files changed, 3 insertions, 2 deletions

diff --git a/bot/exts/backend/branding/_cog.py b/bot/exts/backend/branding/_cog.py
index a57cc8623..e5781f76d 100644
--- a/bot/exts/backend/branding/_cog.py
+++ b/bot/exts/backend/branding/_cog.py
@@ -1,6 +1,7 @@
 import asyncio
 import contextlib
 import random
+import types
 import typing as t
 from datetime import timedelta
 from enum import Enum
@@ -120,10 +121,10 @@ class Branding(commands.Cog):
     # asset has been used in the current rotation.
     _cache_icons = RedisCache()
     _cache_banners = RedisCache()
-    asset_caches = {
+    asset_caches = types.MappingProxyType({
         AssetType.ICON: _cache_icons,
         AssetType.BANNER: _cache_banners
-    }
+    })
 
     # All available event names & durations. Cached by the daemon nightly; read by the calendar command.
     cache_events = RedisCache()