diff --git a/system-announce.izar b/system-announce.izar
index 9ce5511..ae7d4e9 100644
--- a/system-announce.izar
+++ b/system-announce.izar
@@ -1,13 +1,13 @@
 # System announcements:                                   #
 #                                                         #
 # Oct-2020: Izar is in BETA. It runs on RedHat 7.7 and    #
 #           Slurm 20.05. Please report any issues via     #
 #           1234@epfl.ch or the feedback mailing list.    #
 # Feb-2021: Master accounts have access to the QOS        #
 #           'gpu_free'.                                   #
 #                                                         #
 # Apr-2021: IMPORTANT: Izar will be unavailable on the    #
-#           13th and 14th of April for maintenance.       #
+#           20th and 21st of April for maintenance.       #
 #           Access to the login node and job submissions  #
 #           will still be possible. UPDATE: NEW DATE!     #
 #                                                         #