diff --git a/.changeset/tall-shoes-add.md b/.changeset/tall-shoes-add.md
new file mode 100644
index 000000000000..9ace763c1a17
--- /dev/null
+++ b/.changeset/tall-shoes-add.md
@@ -0,0 +1,5 @@
+---
+"miniflare": patch
+---
+
+fix Miniflare (workerd) network settings to allow 240.0.0.0 range