diff --git a/joj3_config_generator/convert.py b/joj3_config_generator/convert.py
index 7b46804..38d0515 100644
--- a/joj3_config_generator/convert.py
+++ b/joj3_config_generator/convert.py
@@ -70,7 +70,7 @@ def convert_joj1(joj1_conf: joj1.Config) -> task.Config:
         task=task.Task(
             name=("Blank Task"),
         ),
-        release=task.Release(deadline=None),
+        release=task.Release(deadline=None, begin_time=None),
         stages=stages,
     )
 
diff --git a/tests/convert/utils.py b/tests/convert/utils.py
index 53be84e..7de55c8 100644
--- a/tests/convert/utils.py
+++ b/tests/convert/utils.py
@@ -1,8 +1,8 @@
 import json
 import os
+from pathlib import Path
 from typing import Any, Dict, Tuple
 
-import Path
 import rtoml
 
 from joj3_config_generator.convert import convert