Updated dependencies

pyproject.toml

@@ -8,14 +8,14 @@ authors = ["Felipe Martin <me@fmartingr.com>"]
 python = "^3.7"
 
 [tool.poetry.dev-dependencies]
-black = {version = "^18.3-alpha.0", allows-prereleases = true}
-flake8 = "^3.7"
-isort = "^4.3"
-pre-commit = "^1.18"
-rope = "^0.14.0"
-ipdb = "^0.12.2"
-pylint = "^2.4"
-mypy = "^0.730.0"
+black = "*"
+flake8 = "*"
+isort = "*"
+pre-commit = "*"
+rope = "*"
+ipdb = "*"
+pylint = "*"
+mypy = "*"
 
 [build-system]
 requires = ["poetry>=0.12"]