diff --git a/wrangler.toml b/wrangler.toml
index 0e0fad5..0d81664 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -4,6 +4,7 @@
 name = "chatsune"
 main = "index.js"
 compatibility_date = "2025-08-24"
+keep_vars = true
 
 # Durable Objects
 [[migrations]]