diff --git a/wrangler.toml b/wrangler.toml
index 3fd2982..61d6df3 100644
--- a/wrangler.toml
+++ b/wrangler.toml
@@ -2,6 +2,7 @@
 # See omaps and organicmaps environments below for production.
 name = 'meta-dev'
 type = 'javascript'
+compatibility_date = '2021-11-11'
 # Organic Maps CF Account ID.
 account_id = '462f578f0939f041e2c24ec99adce458'
 workers_dev = true