diff --git a/setup.py b/setup.py
deleted file mode 100644
index 4502472..0000000
--- a/setup.py
+++ /dev/null
@@ -1,28 +0,0 @@
-import sys
-
-sys.stderr.write(
-    """
-===============================
-Unsupported installation method
-===============================
-pydantic 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='pydantic',
-    install_requires=[
-        'typing-extensions>=4.1.0',
-        'pydantic-core>=0.7.1',
-        'annotated-types>=0.4.0'
-    ],
-)