diff --git a/src/Database/Migrations/v004/UpdateOrganisationsTable.php b/src/Database/Migrations/v004/UpdateOrganisationsTable.php
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+++ b/src/Database/Migrations/v004/UpdateOrganisationsTable.php
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+<?php
+
+/*
+ * AVSDev UF Organisations (https://avsdev.uk)
+ *
+ * @link      https://git.avsdev.uk/avsdev/sprinkle-organisations
+ * @license   https://git.avsdev.uk/avsdev/sprinkle-organisations/blob/master/LICENSE.md (LGPL-3.0 License)
+ */
+
+namespace UserFrosting\Sprinkle\Organisations\Database\Migrations\v004;
+
+use Illuminate\Database\Schema\Blueprint;
+use UserFrosting\Sprinkle\Organisations\Database\Models\Organisation;
+use UserFrosting\Sprinkle\Core\Database\Migration;
+use UserFrosting\Sprinkle\Core\Facades\Seeder;
+
+/**
+ * Organisations table migration
+ * Adds a `registrant_id` column to the `organisations` table
+ * Version 1.0.0.
+ *
+ * @author Craig Williams (https://avsdev.uk)
+ */
+class UpdateOrganisationsTable extends Migration
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static $dependencies = [
+        '\UserFrosting\Sprinkle\Account\Database\Migrations\v400\UsersTable',
+        '\UserFrosting\Sprinkle\Organisations\Database\Migrations\v002\UpdateOrganisationsTable',
+    ];
+
+    /**
+     * {@inheritdoc}
+     */
+    public function up()
+    {
+        if ($this->schema->hasTable('organisations')) {
+            $this->schema->table('organisations', function (Blueprint $table) {
+                $table->foreign('registrant_id')->references('id')->on('users');
+            });
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function down()
+    {
+        $this->schema->table('organisations', function (Blueprint $table) {
+            $table->dropForeign(['registrant_id']);
+        });
+    }
+}
\ No newline at end of file