diff --git a/runbot/fields.py b/runbot/fields.py
index 8e9e9b5d..1da6e59a 100644
--- a/runbot/fields.py
+++ b/runbot/fields.py
@@ -1,5 +1,5 @@
 from odoo.fields import Field
-from collections import MutableMapping
+from collections.abc import MutableMapping
 from psycopg2.extras import Json