diff --git a/INSTALL b/INSTALL
index eba6ba39bf..eaa1781772 100644
--- a/INSTALL
+++ b/INSTALL
@@ -6,13 +6,14 @@ Prerequisites
 
  * Python 2.7 or later (http://www.python.org/)
  * trytond (http://www.tryton.org/)
- * python-sql (http://code.google.com/p/python-sql/)
+ * python-sql 0.4 or later (http://code.google.com/p/python-sql/)
  * trytond_company (http://www.tryton.org/)
  * trytond_party (http://www.tryton.org/)
  * trytond_stock (http://www.tryton.org/)
  * trytond_account (http://www.tryton.org/)
  * trytond_product (http://www.tryton.org/)
  * trytond_account_invoice (http://www.tryton.org/)
+ * trytond_account_invoice_stock (http://www.tryton.org/)
  * trytond_currency (http://www.tryton.org/)
  * trytond_account_product (http://www.tryton.org/)