diff --git a/src/db/Column.php b/src/db/Column.php
index 3b5cb04..d020960 100644
--- a/src/db/Column.php
+++ b/src/db/Column.php
@@ -160,7 +160,7 @@ public static function unsignedInteger($name)
 
     public static function timestamp($name)
     {
-        return self::make($name, AdapterInterface::PHINX_TYPE_TIMESTAMP);
+        return self::make($name, AdapterInterface::PHINX_TYPE_TIMESTAMP, ['null' => true, 'default' => null]);
     }
 
     public static function uuid($name)