diff --git a/conf/cron/mentat-precache-py.cron b/conf/cron/mentat-precache-py.cron
index c7bd2144920fb5b44fab32a5da770f5d793e6a31..8af39307f7a1f394c12742b9f2fe131124a2961e 100644
--- a/conf/cron/mentat-precache-py.cron
+++ b/conf/cron/mentat-precache-py.cron
@@ -10,5 +10,5 @@
 # Use of this source is governed by the MIT license, see LICENSE file.
 #
 
-# Run once in every 10 minutes.
-*/10 * * * *   mentat /var/mentat/venv/bin/mentat-precache.py --regular
+# Run every hour at minute 3.
+3 * * * *   mentat /var/mentat/venv/bin/mentat-precache.py --regular
diff --git a/conf/scripts/maintenance-mode.sh b/conf/scripts/maintenance-mode.sh
index d733ef092e763f197bbb51ad73b1740f5721bd43..58d8478389196aabf01efa4298dc1b716fd5a102 100755
--- a/conf/scripts/maintenance-mode.sh
+++ b/conf/scripts/maintenance-mode.sh
@@ -39,7 +39,6 @@ function maintenance_on() {
     systemctl restart apache2
     mentat-controller.py --command disable
     mentat-controller.py --command stop
-    systemctl restart postgresql
     exit 0
 }
 
@@ -53,7 +52,6 @@ function maintenance_off() {
     echo "#==============================================================================#"
     echo "  Current time: `date --rfc-3339=second`"
     echo ""
-    systemctl restart postgresql
     mentat-controller.py --command start
     mentat-controller.py --command enable
     a2dismod substitute