diff --git a/etc/ncp-config.d/DDNS_spDYN.sh b/etc/ncp-config.d/DDNS_spDYN.sh
index e6b724236..380b136ee 100644
--- a/etc/ncp-config.d/DDNS_spDYN.sh
+++ b/etc/ncp-config.d/DDNS_spDYN.sh
@@ -105,7 +105,7 @@ configure()
     
     # Adds file to cron to run script for DNS record updates and change permissions
     touch $CRONFILE
-    echo "10 * * * * root $INSTALLPATH/spdnsUpdater.sh $DOMAIN_ $TOKEN_ $IPv6_ >/dev/null 2>&1" > "$CRONFILE"
+    echo "*/5 * * * * root $INSTALLPATH/spdnsUpdater.sh $DOMAIN_ $TOKEN_ $IPv6_ >/dev/null 2>&1" > "$CRONFILE"
     chmod +x "$CRONFILE"
 
     # First-time execution of update script and print response from spdns.de server
diff --git a/update.sh b/update.sh
index 49f91a461..2ee811c1e 100755
--- a/update.sh
+++ b/update.sh
@@ -134,6 +134,12 @@ EOF
   [[ ! -f /.docker-image ]] && {
     :
   }
+  
+  # Update cronfile for DDNS_spDYN if existing
+  cd /etc/cron.d
+  [[ -f spdnsupdater ]] && {
+    sed -i "s|.* [* * * *]|*/5 * * * *|" spdnsupdater
+  }
 
   # update nc-restore
   cd "$CONFDIR" &>/dev/null