diff --git a/src/Xml/InvoicesDocWriter.php b/src/Xml/InvoicesDocWriter.php
index bcc9f7a..befce6e 100644
--- a/src/Xml/InvoicesDocWriter.php
+++ b/src/Xml/InvoicesDocWriter.php
@@ -9,7 +9,7 @@
  */
 class InvoicesDocWriter extends XMLWriter
 {
-    private const DOC_VERSION     = 'v1.0.8';
+    private const DOC_VERSION     = 'v1.0.9';
     
     private const XMLNS           = 'http://www.aade.gr/myDATA/invoice/v1.0';
     private const XSI             = 'http://www.w3.org/2001/XMLSchema-instance';