diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a498341a7..a99de85c2 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -39,7 +39,7 @@ repos:
       - id: tox-ini-fmt
         args: [ "-p", "fix_lint" ]
   - repo: https://github.com/asottile/setup-cfg-fmt
-    rev: v2.0.0
+    rev: v2.2.0
     hooks:
       - id: setup-cfg-fmt
         args: [ --min-py3-version, "3.5", "--max-py-version", "3.10" ]
diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index cf1ac350e..e0259323b 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -89,6 +89,7 @@ Mauricio Villegas
 Mehdi Abaakouk
 Michael Manganiello
 Mickaël Schoentgen
+Michał Górny
 Mikhail Kyshtymov
 Miro Hrončok
 Monty Taylor
diff --git a/docs/changelog/2521.misc.rst b/docs/changelog/2521.misc.rst
new file mode 100644
index 000000000..cf43f1e46
--- /dev/null
+++ b/docs/changelog/2521.misc.rst
@@ -0,0 +1 @@
+Replaced deprecated ``license_file`` key with ``license_files`` in ``setup.cfg`` -- by :user:`mgorny`.
diff --git a/pyproject.toml b/pyproject.toml
index 6aa5a1b15..cf17a2a0b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [build-system]
 requires = [
-    "setuptools >= 40.0.4",
+    "setuptools >= 42.0.0",
     "setuptools_scm >= 2.0.0",
     "wheel >= 0.29.0",
 ]
diff --git a/setup.cfg b/setup.cfg
index 37013e356..efa75fb7d 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -8,7 +8,7 @@ author = Holger Krekel, Oliver Bestwalter, Bernát Gábor and others
 maintainer = Bernát Gábor, Oliver Bestwalter, Anthony Sottile, Jürgen Gmach
 maintainer_email = gaborjbernat@gmail.com
 license = MIT
-license_file = LICENSE
+license_files = LICENSE
 platforms = any
 classifiers =
     Development Status :: 5 - Production/Stable