diff --git a/.changeset/few-walls-obey.md b/.changeset/few-walls-obey.md
index 5f013c4653a0..11aaa493487c 100644
--- a/.changeset/few-walls-obey.md
+++ b/.changeset/few-walls-obey.md
@@ -2,4 +2,10 @@
 '@sveltejs/adapter-cloudflare-workers': patch
 ---
 
-refactor implementation from "Service Worker" pattern to "Module Worker" used in adapter-cloudflare
+[Breaking] refactor implementation from "Service Worker" pattern to "Module Worker" used in adapter-cloudflare
+
+#### add the following to your wrangler.toml
+```toml
+[build.upload]
+format = "modules"
+```