diff --git a/src/pycontw2016/settings/base.py b/src/pycontw2016/settings/base.py
index fdbfd7583..b72849efc 100644
--- a/src/pycontw2016/settings/base.py
+++ b/src/pycontw2016/settings/base.py
@@ -334,7 +334,7 @@ def node_bin(name):
     (datetime.date(2025, 9, 7), _('Day 2')),
 ])
 
-COC_VERSION = '2025.0'
+COC_VERSION = '2024.0'
 
 # Since 2021, pycon.tw has indivisual server hosting the attendee-facing pages
 # (see the repo at https://github.com/pycontw/pycontw-2021) and this config