diff --git a/data/cosin.toml b/data/cosin.toml
index 814e149..91aae12 100644
--- a/data/cosin.toml
+++ b/data/cosin.toml
@@ -25,7 +25,7 @@ location_url = "https://www.villa-ritter.ch/"
 location_city = "Biel"
 
 
-registration_open = true
+registration_open = false
 registration_email = "mampf2023@cosin.ch"
 registration_url = "https://pretix.cosin.ch/cosin/cosin2023/"
 entrance_fee = "CHF 30"