diff --git a/db/upgrade.php b/db/upgrade.php
index b91c7428..9ade8467 100755
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -874,7 +874,7 @@ function xmldb_zoom_upgrade($oldversion) {
         $table = new xmldb_table('zoom');
 
         // Define and conditionally add field registration.
-        $field = new xmldb_field('registration', XMLDB_TYPE_INTEGER, '1', null, null, null, null, 'option_auto_recording');
+        $field = new xmldb_field('registration', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '2', 'option_auto_recording');
         if (!$dbman->field_exists($table, $field)) {
             $dbman->add_field($table, $field);
         }
@@ -933,5 +933,20 @@ function xmldb_zoom_upgrade($oldversion) {
         upgrade_mod_savepoint(true, 2023111600, 'zoom');
     }
 
+    if ($oldversion < 2024012500) {
+        // Version 5.1.0 incorrectly upgraded the zoom table's registration field. It should not be null and should default to 2.
+        $table = new xmldb_table('zoom');
+        $field = new xmldb_field('registration', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '2', 'option_auto_recording');
+
+        // Launch change of nullability for field registration.
+        $dbman->change_field_notnull($table, $field);
+
+        // Launch change of default for field registration.
+        $dbman->change_field_default($table, $field);
+
+        // Zoom savepoint reached.
+        upgrade_mod_savepoint(true, 2024012500, 'zoom');
+    }
+
     return true;
 }
diff --git a/version.php b/version.php
index 8b4428d7..62d6a42d 100755
--- a/version.php
+++ b/version.php
@@ -25,7 +25,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'mod_zoom';
-$plugin->version = 2023121400;
+$plugin->version = 2024012500;
 $plugin->release = 'v5.1.4';
 $plugin->requires = 2019052000;
 $plugin->maturity = MATURITY_STABLE;