diff --git a/test/workflows/iptrunk/test_modify_trunk_interface.py b/test/workflows/iptrunk/test_modify_trunk_interface.py
index 4e72fbd72893222cd5f6fc516c12dfc08e7b27ca..7c11c95518cf002c25c5178966b5f1706028cdfb 100644
--- a/test/workflows/iptrunk/test_modify_trunk_interface.py
+++ b/test/workflows/iptrunk/test_modify_trunk_interface.py
@@ -121,6 +121,7 @@ def input_form_iptrunk_data(
             "iptrunk_speed": new_speed,
             "iptrunk_number_of_members": new_link_count,
             "iptrunk_description_suffix": faker.word(),
+            "iptrunk_config_version": "1.0",
         },
         {},
         {