diff --git a/.travis.yml b/.travis.yml
index 894e74b..7551292 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,9 @@ python:
   - "3.6"
   - "3.6-dev"
   - "3.7-dev"
+before_install:
+  - pip install -U pip
+  - pip install -U setuptools
 install:
   - pip install -r requirements.txt
   - pip install pylint
diff --git a/LICENSE b/LICENSE
index d64b530..55bd0da 100644
--- a/LICENSE
+++ b/LICENSE
@@ -629,7 +629,7 @@ to attach them to the start of each source file to most effectively
 state the exclusion of warranty; and each file should have at least
 the "copyright" line and a pointer to where the full notice is found.
 
-    docker-judge - A Docker Based Online Judge Engine
+    dockerjudge - A Docker Based Online Judge Engine
     Copyright (C) 2019 汪心禾
 
     This program is free software: you can redistribute it and/or modify
diff --git a/README.md b/README.md
index 3b6b336..186eb3f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
-# docker-judge
-[![Build Status](https://www.travis-ci.org/wangxinhe2006/docker-judge.svg)](https://www.travis-ci.org/wangxinhe2006/docker-judge)
-[![License](https://img.shields.io/github/license/wangxinhe2006/docker-judge.svg)](https://img.shields.io/github/license/wangxinhe2006/docker-judge.svg)
+# dockerjudge
+[![Build Status](https://www.travis-ci.org/wangxinhe2006/dockerjudge.svg)](https://www.travis-ci.org/wangxinhe2006/dockerjudge)
+[![License](https://img.shields.io/github/license/wangxinhe2006/dockerjudge.svg)](https://img.shields.io/github/license/wangxinhe2006/dockerjudge.svg)
 
 A Docker Based Online Judge Engine
 
diff --git a/dockerjudge/__init__.py b/dockerjudge/__init__.py
index bbac9dd..84ab1d0 100644
--- a/dockerjudge/__init__.py
+++ b/dockerjudge/__init__.py
@@ -59,7 +59,7 @@ def judge(settings, source='', tests=(), timeout=1, client=docker.from_env()):
                 thread.join()
                 result.append(thread.return_value)
             return [result, (compiler.output[1] or b'').decode()]
-        return [['CE'] * len(tests), compiler.output[1].decode()]
+        return [['CE' for test in tests], compiler.output[1].decode()]
     finally:
         container.remove(force=True)
 
diff --git a/requirements.txt b/requirements.txt
index 4a9e16c..911a8d3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-docker[tls]
+docker[tls]>=3.7
 ruamel.yaml
diff --git a/setup.py b/setup.py
index e240789..d4016f7 100644
--- a/setup.py
+++ b/setup.py
@@ -5,14 +5,18 @@
 
 setuptools.setup(
     name="dockerjudge",
-    version="0.2",
+    version="0.3",
     author="汪心禾",
     author_email="wangxinhe06@gmail.com",
     description="A Docker Based Online Judge Engine",
     long_description=long_description,
     long_description_content_type="text/markdown",
-    url="https://github.com/wangxinhe2006/docker-judge",
+    url="https://github.com/wangxinhe2006/dockerjudge",
     packages=setuptools.find_packages(),
+    install_requires = [
+        'docker[tls]>=3.7',
+        'ruamel.yaml'
+    ],
     classifiers=[
         "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",