diff --git a/modules/purchase/tryton.cfg b/modules/purchase/tryton.cfg
index 7687f5af52..7b4e23318b 100644
--- a/modules/purchase/tryton.cfg
+++ b/modules/purchase/tryton.cfg
@@ -1,5 +1,5 @@
 [tryton]
-version=6.0.20
+version=6.0.21
 depends:
     account
     account_invoice