diff --git a/_data/announcements.yaml b/_data/announcements.yaml
index 4e775a4..12e1130 100644
--- a/_data/announcements.yaml
+++ b/_data/announcements.yaml
@@ -1,4 +1,10 @@
 ---
+- title: 'DARIAH-DE AAI maintenance'
+  date_start: '2024-12-19 17:00'
+  date_end: '2024-12-19 19:00'
+  description: 'The DARIAH AAI is not available due to maintenance. We apoligise for the inconvenience!'
+  affected:
+    - '/middlewares/aai'
 ###
 # Template:
 #