diff --git a/schemas/problem_instance.schema.0.0.1.json b/schemas/problem_instance.schema.0.0.1.json
index 230e39b..c30bdb0 100644
--- a/schemas/problem_instance.schema.0.0.1.json
+++ b/schemas/problem_instance.schema.0.0.1.json
@@ -10,7 +10,7 @@
         "calendar_due_date",
         "contact_info",
         "problem_type",
-        "instance_data",
+        "tasks",
         "status",
         "superseded_by",
         "application_domain",