diff --git a/flytekit/models/array_job.py b/flytekit/models/array_job.py
index 03718c8768..f2112a4163 100644
--- a/flytekit/models/array_job.py
+++ b/flytekit/models/array_job.py
@@ -85,18 +85,3 @@ def to_dict(self):
             )
 
         return _json_format.MessageToDict(array_job)
-
-    @classmethod
-    def from_dict(cls, idl_dict):
-        """
-        :param dict[T, Text] idl_dict:
-        :rtype: ArrayJob
-        """
-        pb2_object = _json_format.Parse(_json.dumps(idl_dict), _array_job.ArrayJob())
-
-        return cls(
-            parallelism=pb2_object.parallelism,
-            size=pb2_object.size,
-            min_successes=pb2_object.min_successes,
-            min_success_ratio=pb2_object.min_success_ratio,
-        )