diff --git a/requirements.txt b/requirements.txt
index 024d87e30..0b54fa596 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,10 +2,10 @@
 -e .[full]
 
 # Testing
-autoflake==1.4
-black==22.6.0
+autoflake==1.5.3
+black==22.8.0
 coverage==6.4.2
-databases[sqlite]==0.5.5
+databases[sqlite]==0.6.1
 flake8==3.9.2
 isort==5.10.1
 mypy==0.971
@@ -20,7 +20,7 @@ greenlet==2.0.0a2; python_version >= "3.11"
 
 # Documentation
 mkdocs==1.3.1
-mkdocs-material==8.3.9
+mkdocs-material==8.4.2
 mkautodoc==0.1.0
 
 # Packaging
diff --git a/setup.py b/setup.py
new file mode 100644
index 000000000..1a990461f
--- /dev/null
+++ b/setup.py
@@ -0,0 +1,29 @@
+import sys
+
+from setuptools import setup
+
+sys.stderr.write(
+    """
+===============================
+Unsupported installation method
+===============================
+Starlette no longer supports installation with `python setup.py install`.
+Please use `python -m pip install .` instead.
+"""
+)
+sys.exit(1)
+
+
+# The below code will never execute, however GitHub is particularly
+# picky about where it finds Python packaging metadata.
+# See: https://github.com/github/feedback/discussions/6456
+#
+# To be removed once GitHub catches up.
+
+setup(
+    name="starlette",
+    install_requires=[
+        "anyio>=3.4.0,<5",
+        "typing_extensions>=3.10.0; python_version < '3.10'",
+    ],
+)