diff --git a/bamboo-specs/release.yaml b/bamboo-specs/release.yaml
index 354c03b9..d07f9953 100644
--- a/bamboo-specs/release.yaml
+++ b/bamboo-specs/release.yaml
@@ -228,7 +228,7 @@
   - 'adg-docker': 'true'
 
 'triggers':
-- 'cron': '0 30 14 * * ?'
+- 'cron': '0 30 14 * * MON-FRI *'
 'branches':
   'create': 'manually'
   'delete':