diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1454416d9..45bd404eb 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -14,7 +14,7 @@ repos:
       - id: end-of-file-fixer
       - id: trailing-whitespace
   - repo: https://github.com/asottile/pyupgrade
-    rev: v2.12.0
+    rev: v2.13.0
     hooks:
       - id: pyupgrade
   - repo: https://github.com/PyCQA/isort
@@ -22,7 +22,7 @@ repos:
     hooks:
       - id: isort
   - repo: https://github.com/psf/black
-    rev: 20.8b1
+    rev: 21.4b0
     hooks:
       - id: black
         args:
diff --git a/src/tox/config/__init__.py b/src/tox/config/__init__.py
index 6d45c9874..63adb2bbd 100644
--- a/src/tox/config/__init__.py
+++ b/src/tox/config/__init__.py
@@ -1076,7 +1076,7 @@ def envpython(self):
         return self.get_envpython()
 
     def get_envpython(self):
-        """ path to python/jython executable. """
+        """path to python/jython executable."""
         if "jython" in str(self.basepython):
             name = "jython"
         else:
@@ -1552,7 +1552,7 @@ def expand_section_names(config):
 
 
 def _split_env(env):
-    """if handed a list, action="append" was used for -e """
+    """if handed a list, action="append" was used for -e"""
     if env is None:
         return []
     if not isinstance(env, list):
diff --git a/src/tox/hookspecs.py b/src/tox/hookspecs.py
index 90374cfb5..5ea9c07e5 100644
--- a/src/tox/hookspecs.py
+++ b/src/tox/hookspecs.py
@@ -6,7 +6,7 @@
 
 @hookspec
 def tox_addoption(parser):
-    """ add command line options to the argparse-style parser object."""
+    """add command line options to the argparse-style parser object."""
 
 
 @hookspec
diff --git a/src/tox/package/__init__.py b/src/tox/package/__init__.py
index f6925162a..9a32f3f99 100644
--- a/src/tox/package/__init__.py
+++ b/src/tox/package/__init__.py
@@ -18,7 +18,7 @@ def tox_package(session, venv):
 
 
 def get_package(session):
-    """"Perform the package operation"""
+    """Perform the package operation"""
     config = session.config
     if config.skipsdist:
         info("skipping sdist step")
diff --git a/src/tox/reporter.py b/src/tox/reporter.py
index d954ab2c0..17a3c921c 100644
--- a/src/tox/reporter.py
+++ b/src/tox/reporter.py
@@ -42,7 +42,7 @@ def verbosity(self):
         return self.verbose_level - self.quiet_level
 
     def log_popen(self, cwd, outpath, cmd_args_shell, pid):
-        """ log information about the action.popen() created process. """
+        """log information about the action.popen() created process."""
         msg = "[{}] {}$ {}".format(pid, cwd, cmd_args_shell)
         if outpath:
             if outpath.common(cwd) is not None:
diff --git a/src/tox/venv.py b/src/tox/venv.py
index 5390e9764..e295e5f21 100644
--- a/src/tox/venv.py
+++ b/src/tox/venv.py
@@ -154,7 +154,7 @@ def hook(self):
 
     @property
     def path(self):
-        """ Path to environment base dir. """
+        """Path to environment base dir."""
         return self.envconfig.envdir
 
     @property
@@ -163,7 +163,7 @@ def path_config(self):
 
     @property
     def name(self):
-        """ test environment name. """
+        """test environment name."""
         return self.envconfig.envname
 
     def __repr__(self):