diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index e8e76ce4..0b1a9b10 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.9.2
+current_version = 0.9.2-post1
 commit = True
 tag = False
 tag_name = {new_version}
diff --git a/Makefile b/Makefile
index 9cd8d4bc..eb679612 100644
--- a/Makefile
+++ b/Makefile
@@ -37,12 +37,12 @@ setup: .python-version setup.cfg
 lint: $(SOURCEFILES)
 	tox -e lint
 
-# TODO (dargueta): Make `clean` work on Windows. Windows doesn't have `rm`.
 .PHONY: clean
 clean:
-	git clean -fd $(DOCSDIR)
-	rm -rf .tox .cache .pytest_cache *.egg-info *.eggs .coverage dist build .mypy_cache
-	find . -name '__pycache__' -type d -exec rm -rf '{}' \+
+	$(MAKE) -C $(DOCSDIR) clean
+	$(RM) $(DOCSSOURCE)/binobj.*.rst  $(DOCSSOURCE)/binobj.rst  $(DOCSSOURCE)/modules.rst
+	$(RM) -r .tox .cache .pytest_cache *.egg-info *.eggs .coverage dist build .mypy_cache
+	find . -name '__pycache__' -type d -exec $(RM) -r '{}' \+
 
 # Run the unit tests if the source code has changed.
 .PHONY: test
diff --git a/binobj/__init__.py b/binobj/__init__.py
index 022ec4a2..d850cebb 100644
--- a/binobj/__init__.py
+++ b/binobj/__init__.py
@@ -19,5 +19,5 @@ def __to_version_info():
 
 
 # Do not modify directly; use ``bumpversion`` command instead.
-__version__ = "0.9.2"
+__version__ = "0.9.2-post1"
 __version_info__ = __to_version_info()
diff --git a/docs/source/CHANGELOG.rst b/docs/source/CHANGELOG.rst
index 517c86ba..a5cc3f0b 100644
--- a/docs/source/CHANGELOG.rst
+++ b/docs/source/CHANGELOG.rst
@@ -1,6 +1,19 @@
 Changelog
 =========
 
+0.9.2-post1
+-----------
+
+Released 2020-09-24
+
+Other Changes
+~~~~~~~~~~~~~
+
+* Loosened version requirement of ``typing-inspect`` package.
+* Upgraded some test dependencies
+* Improved behavior of ``make clean``
+* Made MyPy settings stricter
+
 0.9.2
 -----
 
diff --git a/docs/source/conf.py b/docs/source/conf.py
index bb70e64b..3548ac73 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -65,7 +65,7 @@
 # The short X.Y version.
 version = "0.9.2"
 # The full version, including alpha/beta/rc tags.
-release = "0.9.2"
+release = "0.9.2-post1"
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.cfg b/setup.cfg
index 98034cfd..34218c5e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -21,13 +21,13 @@ name: binobj
 packages: find:
 url: https://www.github.com/dargueta/binobj
 ; Do not modify the version manually -- use the bumpversion CLI tool
-version: 0.9.2
+version: 0.9.2-post1
 
 [options]
 install_requires:
     attrs>=18.2.0
     more-itertools>=4.0, <9
-    typing-inspect==0.4.*  ; python_version<="3.7"
+    typing-inspect>=0.4.0, <0.7  ; python_version<="3.7"
 python_requires: >=3.5
 
 [options.extras_require]
@@ -37,7 +37,7 @@ dev:
     tox>=3.0
     tox-pyenv>=1.0
 lint:
-    black==19.10b0
+    black==20.8b1
     flake8==3.8.3
     flake8-black==0.2.1
     flake8-bugbear==20.1.4
@@ -45,9 +45,10 @@ lint:
     flake8-debugger==3.2.1
     flake8-isort==4.0.0
     flake8-logging-format==0.6.0
+    isort==5.5.3
     mypy==0.782
 test:
-    pytest==6.0.1
+    pytest==6.0.2
     pytest-cov==2.10.1
     pytest-randomly==3.4.1
 
diff --git a/tox.ini b/tox.ini
index 66b0d498..2caf9ea7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,7 +16,7 @@ commands = flake8
 [testenv:mypy]
 basepython = python3.7
 deps = -e.[lint]
-commands = mypy binobj
+commands = mypy --show-error-codes binobj
 
 [pytest]
 filterwarnings =
@@ -62,14 +62,14 @@ include_trailing_comma = true
 
 [mypy]
 strict_optional = true
-disallow_any_decorated = false
+disallow_any_decorated = true
 disallow_any_generics = true
-disallow_any_unimported = false
+disallow_any_unimported = true
 disallow_incomplete_defs = true
 disallow_subclassing_any = true
 disallow_untyped_calls = true
 disallow_untyped_defs = true
-# ignore_missing_imports = true
+ignore_missing_imports = false
 warn_unreachable = true
 warn_unused_ignores = true
 warn_redundant_casts = true