diff --git a/ftf_cli/schema.py b/ftf_cli/schema.py
index 889f230..c080102 100644
--- a/ftf_cli/schema.py
+++ b/ftf_cli/schema.py
@@ -38,7 +38,7 @@
                                             "additionalProperties": True,
                                         },
                                     },
-                                    "required": ["source", "version", "attributes"],
+                                    "required": ["source", "attributes"],
                                 }
                             },
                         },