diff --git a/.gitignore b/.gitignore
index db3645a..309995d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,13 @@
 .tox
 .coverage*
+.history
+.direnv
+.venv
+Pipfile
 htmlcov*
 coverage*.xml
 .pytest_cache
+*.egg-info
+*.pyc
+__pycache__
+.envrc
diff --git a/requirements-dev.txt b/requirements-dev.txt
index f8054a5..8b5fd86 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,4 +3,6 @@ flake8==3.7.8
 flake8-bugbear==19.8.0;python_version>="3.5"
 flake8-tuple==0.4.0
 isort==4.3.21
+paramiko==2.10.3
+pytest==7.1.1
 tox
diff --git a/setup.py b/setup.py
index 8b08e4b..b40019a 100644
--- a/setup.py
+++ b/setup.py
@@ -58,6 +58,9 @@ def run(self):
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.9',
+        'Programming Language :: Python :: 3.10',
         'Topic :: Software Development :: Testing'
     ]
 )
diff --git a/tox.ini b/tox.ini
index 1145ac3..9f9755c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py35,py36,py37,cov-report
+envlist = py27,py35,py36,py37,py38,py39,py310,cov-report
 
 [testenv]
 deps =