diff --git a/package.json b/package.json
index 5c081ff..56b5693 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "lodash": "^4",
     "sprintf-js": "^1",
     "superagent": "^3.8.1",
-    "tryton-model": "~4.2",
+    "tryton-model": "~4.8.3",
     "tryton-session": "~4.2"
   }
 }