diff --git a/system-announce b/system-announce
index 95c55b1..4d4f924 100644
--- a/system-announce
+++ b/system-announce
@@ -1,7 +1,14 @@
 # System announcements:                                   #
 #                                                         #
 # 17-Jul-2018                                             #
 #     All clusters are back after the annual maintenance. #
 #     More details at:                                    #
-#                                                         #
+#
 # https://scitas-data.epfl.ch/kb/2018+Annual+Maintenance  #
+#                                                         #
+# 14-Aug-2018                                             #
+#     Deneb maintenance                                   #
+#                                                         #
+# 21-Aug-2018                                             #
+#     Fidis maintenance                                   #
+#                                                         #