diff --git a/db/install.xml b/db/install.xml
index 7aba70a..bfba9c2 100755
--- a/db/install.xml
+++ b/db/install.xml
@@ -74,7 +74,7 @@
         <FIELD NAME="timetaken" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false" COMMENT="When attendance of this student was taken"/>
         <FIELD NAME="takenby" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="remarks" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="ipaddress" TYPE="char" LENGTH="45" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="ipaddress" TYPE="char" LENGTH="45" NOTNULL="false" DEFAULT="" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
         <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for attendance_log"/>
diff --git a/db/upgrade.php b/db/upgrade.php
index 6a9d8ab..cba434a 100755
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -665,5 +665,31 @@ function xmldb_attendance_upgrade($oldversion=0) {
         upgrade_mod_savepoint(true, 2021082400, 'attendance');
     }
 
+    if ($oldversion < 2021082401) {
+
+        // Changing the default of field automarkcmid on table attendance_sessions to 0.
+        $table = new xmldb_table('attendance_sessions');
+        $field = new xmldb_field('automarkcmid', XMLDB_TYPE_INTEGER, '10', null, null, null, '0', 'rotateqrcodesecret');
+
+        // Launch change of default for field automarkcmid.
+        $dbman->change_field_default($table, $field);
+
+        // Attendance savepoint reached.
+        upgrade_mod_savepoint(true, 2021082401, 'attendance');
+    }
+
+    if ($oldversion < 2021082402) {
+
+        // Changing the default of field ipaddress on table attendance_log to .
+        $table = new xmldb_table('attendance_log');
+        $field = new xmldb_field('ipaddress', XMLDB_TYPE_CHAR, '45', null, null, null, '', 'remarks');
+
+        // Launch change of default for field ipaddress.
+        $dbman->change_field_default($table, $field);
+
+        // Attendance savepoint reached.
+        upgrade_mod_savepoint(true, 2021082402, 'attendance');
+    }
+
     return $result;
 }
diff --git a/version.php b/version.php
index 599be0e..12bd096 100755
--- a/version.php
+++ b/version.php
@@ -23,9 +23,9 @@
  */
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version  = 2021082400;
+$plugin->version  = 2021082402;
 $plugin->requires = 2021051700; // Requires 3.11.
-$plugin->release = '3.11.7';
+$plugin->release = '3.11.8';
 $plugin->maturity  = MATURITY_STABLE;
 $plugin->cron     = 0;
 $plugin->component = 'mod_attendance';