Merge b7976d9 into df5dbb9

requirements.txt

@@ -21,7 +21,7 @@ marshmallow-enum==1.5.1
 marshmallow==3.13.0 ; python_version >= "3.5"
 multidict==5.2.0 ; python_version >= "3.6"
 mypy-extensions==0.4.3
-pycares==4.1.2
+pycares==4.2.0
 pycparser==2.20 ; python_version >= "2.7" and python_version != "3.0" and python_version != "3.1" and python_version != "3.2" and python_version != "3.3"
 pyreadline3==3.3 ; sys_platform == "win32"
 python-dateutil==2.8.2 ; python_version != "3.0"