diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
index d4d0dcf..f7d281d 100644
--- a/.gitea/workflows/build.yaml
+++ b/.gitea/workflows/build.yaml
@@ -4,8 +4,7 @@ on:
   - pull_request
 jobs:
   build:
-    container:
-      image: focs.ji.sjtu.edu.cn:5000/gitea/runner-images:ubuntu-latest
+    runs-on: ubuntu-latest
     steps:
       - name: Check out repository code
         uses: https://gitea.com/BoYanZh/checkout@focs
diff --git a/joj3_config_generator/main.py b/joj3_config_generator/main.py
index 76b95d9..7f63fb4 100644
--- a/joj3_config_generator/main.py
+++ b/joj3_config_generator/main.py
@@ -9,7 +9,6 @@ import yaml
 
 from joj3_config_generator.convert import convert as convert_conf
 from joj3_config_generator.convert import convert_joj1 as convert_joj1_conf
-from joj3_config_generator.convert import distribute_json
 from joj3_config_generator.models import joj1, repo, task
 from joj3_config_generator.utils.logger import logger
 
diff --git a/joj3_config_generator/processers/joj1.py b/joj3_config_generator/processers/joj1.py
index c07f018..52ff0a7 100644
--- a/joj3_config_generator/processers/joj1.py
+++ b/joj3_config_generator/processers/joj1.py
@@ -1,9 +1,7 @@
-from typing import List
-
 import humanfriendly
 from pytimeparse.timeparse import timeparse
 
-from joj3_config_generator.models import joj1, result, task
+from joj3_config_generator.models import joj1, task
 
 
 def get_joj1_run_stage(joj1_config: joj1.Config) -> task.Stage: