diff --git a/pytchat/__init__.py b/pytchat/__init__.py
index 4d1065b..a4b5ea2 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__      = '0.5.0'
+__version__      = '0.5.1'
 __license__      = 'MIT'
 __author__       = 'taizan-hokuto'
 __author_email__ = '55448286+taizan-hokuto@users.noreply.github.com'
diff --git a/pytchat/config/__init__.py b/pytchat/config/__init__.py
index e390412..4f26a1e 100644
--- a/pytchat/config/__init__.py
+++ b/pytchat/config/__init__.py
@@ -9,6 +9,6 @@ _sml = dc(b"BQS?8F#ks-GB\\6`H#IhIF^eo7@rH3;H#IhIF^eor06T''Ch\\'(?XmbXF>%9<FC/iuG
 _smr = dc(b"BQS?8F#ks-GB\\6`H#IhIF^eo7@rH3;H#IhIF^eor06T''Ch\\'(?XmbXF>%9<FC/iuG%G#jBOQ!iEb03+@<k(QAU-F)8U=fDGsP557S5F7CiNH7;)D3N77^*B6YU@\\?WfBr0emZX=#^").decode()
 
 
-def logger(module_name: str, loglevel=logging.DEBUG):
+def logger(module_name: str, loglevel=None):
     module_logger = mylogger.get_logger(module_name, loglevel=loglevel)
     return module_logger