Update requirements.txt

requirements.txt

@@ -1,42 +1,42 @@
 astroid==2.4.2
-attrs==20.1.0
+attrs==20.3.0
 autopep8==1.5.4
-certifi==2020.6.20
-chardet==3.0.4
-coverage==5.2.1
-coveralls==2.1.2
+certifi==2020.12.5
+chardet==4.0.0
+coverage==5.3.1
+coveralls==3.0.0
 doc8==0.8.1
 docopt==0.6.2
 docutils==0.16
 filelock==3.0.12
 idna==2.10
 iniconfig==1.1.1
-isort==5.4.2
+isort==5.7.0
 lazy-object-proxy==1.4.3
 mccabe==0.6.1
-more-itertools==8.4.0
-mypy==0.782
+more-itertools==8.6.0
+mypy==0.800
 mypy-extensions==0.4.3
-packaging==20.4
-pbr==5.4.5
+packaging==20.8
+pbr==5.5.1
 pluggy==0.13.1
 public==2020.12.3
-py==1.9.0
+py==1.10.0
 pycodestyle==2.6.0
 Pygments==2.7.4
 pylint==2.6.0
 pyparsing==2.4.7
-pytest==6.0.1
-pytest-cov==2.10.1
-pytest-mypy==0.6.2
+pytest==6.2.1
+pytest-cov==2.11.1
+pytest-mypy==0.8.0
 query-string==2020.12.3
-requests==2.24.0
-restructuredtext-lint==1.3.1
+requests==2.25.1
+restructuredtext-lint==1.3.2
 six==1.15.0
-stevedore==3.2.0
-toml==0.10.1
-typed-ast==1.4.1
-typing-extensions==3.7.4.2
-urllib3==1.25.10
+stevedore==3.3.0
+toml==0.10.2
+typed-ast==1.4.2
+typing-extensions==3.7.4.3
+urllib3==1.26.2
 wcwidth==0.2.5
 wrapt==1.12.1