diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 688a10e..4b5f357 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,8 +15,8 @@ repos:
     hooks:
       - id: pyupgrade
         args:
-          - --py36-plus
-        # We need the bootstrap.py script to be parsable with Python 3.5, so we
+          - --py39-plus
+        # We need the bootstrap.py script to be parsable with Python 3.8, so we
         # exclude it from the pyupgrade hook that will apply f-strings etc.
         exclude: bootstrap/bootstrap.py
 
diff --git a/pyproject.toml b/pyproject.toml
index 9ebb7e0..db33483 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,12 +25,10 @@ profile = "black"
 # target-version should be all supported versions, see
 # https://github.com/psf/black/issues/751#issuecomment-473066811
 target_version = [
-    "py36",
-    "py37",
-    "py38",
     "py39",
     "py310",
     "py311",
+    "py312",
 ]
 
 
diff --git a/setup.py b/setup.py
index 9298d93..8666810 100644
--- a/setup.py
+++ b/setup.py
@@ -10,6 +10,7 @@ setup(
     license="3 Clause BSD",
     packages=find_packages(),
     include_package_data=True,
+    python_requires=">=3.9",
     install_requires=[
         "ruamel.yaml==0.18.*",
         "jinja2",