diff --git a/.github/workflows/run_test.yml b/.github/workflows/run_test.yml
index eb8cf62..d806334 100644
--- a/.github/workflows/run_test.yml
+++ b/.github/workflows/run_test.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: [3.7, 3.8]
+        python-version: [3.7, 3.8, 3.9]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/pytchat/__init__.py b/pytchat/__init__.py
index 74a7424..4d1065b 100644
--- a/pytchat/__init__.py
+++ b/pytchat/__init__.py
@@ -2,7 +2,7 @@
 pytchat is a lightweight python library to browse youtube livechat without Selenium or BeautifulSoup.
 """
 __copyright__    = 'Copyright (C) 2019, 2020 taizan-hokuto'
-__version__      = '0.4.9'
+__version__      = '0.5.0'
 __license__      = 'MIT'
 __author__       = 'taizan-hokuto'
 __author_email__ = '55448286+taizan-hokuto@users.noreply.github.com'
diff --git a/pytchat/core/pytchat.py b/pytchat/core/pytchat.py
index 361057d..0cb76d4 100644
--- a/pytchat/core/pytchat.py
+++ b/pytchat/core/pytchat.py
@@ -168,7 +168,7 @@ class PytchatCore:
             with httpx.Client(http2=True) as client:
                 try:
                     response = client.post(self._fetch_url, json=param)
-                    livechat_json = json.loads(response.text, encoding='utf-8')
+                    livechat_json = json.loads(response.text)
                     break
                 except (json.JSONDecodeError, httpx.ConnectTimeout, httpx.ReadTimeout, httpx.ConnectError) as e:
                     err = e