diff --git a/system-announce b/system-announce
index 97571b6..e407645 100644
--- a/system-announce
+++ b/system-announce
@@ -1,5 +1,9 @@
 # System announcements:                                   #
 #                                                         #
 # Nov-2018: CPU and RAM usage on the login nodes is now   #
 #           limited to respectively 1 CPU and 8GB.        # 
 #                                                         #
+# 12-Feb-2019: Deneb maintenance day.                     #
+#                                                         #
+# 19-Feb-2019: Fidis maintenance day.                     #
+#                                                         #