update requirements

requirements.txt

 arrow==1.1.0
 astroid==2.5.6
 autopep8==1.5.7
+beautifulsoup4==4.9.3
 binaryornot==0.4.4
 Brotli==1.0.9
 certifi==2020.12.5
@@ -49,6 +50,7 @@ requests==2.25.1
 rfc3986==1.4.0
 six==1.15.0
 sniffio==1.2.0
+soupsieve==2.2.1
 starlette==0.13.6
 text-unidecode==1.3
 toml==0.10.2