diff --git a/Pipfile b/Pipfile
index da364a95..c825d276 100644
--- a/Pipfile
+++ b/Pipfile
@@ -4,33 +4,32 @@ verify_ssl = true
 name = "pypi"
 
 [dev-packages]
+black = "*"
 Cheroot = "~=6.2"
 flake8 = "~=3.5"
 flake8-bugbear = "~=18.2"
 flake8-quotes = "~=1.0"
+isort = "*"
 Paste = "~=2.0"
+pylint = "*"
 pytest = "~=2.7"
 pytest-cov = "~=1.8"
 recommonmark = "*"
 requests = "*"
+rope = "*"
 setuptools = "~=38.6"
+Sphinx = "~=1.6"
 sphinx_rtd_theme = "*"
-tox = "~=2.0"
+tox = "~=3.2"
 twine = "~=1.11"
 WebTest = "~=2.0"
 wheel = "*"
-Sphinx = "~=1.6"
-black = "*"
-isort = "*"
-pylint = "*"
-rope = "*"
 
 [packages]
 defusedxml = "~=0.5"
 Jinja2 = "~=2.10"
 jsmin = "~=2.2"
 PyYAML = "~=3.2"
-tox = "*"
 
 [requires]
 #python_version = "3.6"