diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2eee2995..5accd397 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,6 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c6236900..f2cc23b9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -27,7 +27,6 @@ test:
   parallel:
     matrix:
       - python_version:
-          - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f42645e4..3afda835 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -32,7 +32,7 @@ repos:
     rev: v3.21.0
     hooks:
       - id: pyupgrade
-        args: [--py39-plus]
+        args: [--py310-plus]
 
   - repo: https://github.com/pycqa/isort
     rev: 7.0.0
diff --git a/hcloud/core/client.py b/hcloud/core/client.py
index 07dfaf48..da9901f8 100644
--- a/hcloud/core/client.py
+++ b/hcloud/core/client.py
@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 import warnings
-from typing import TYPE_CHECKING, Any, Callable, ClassVar
+from collections.abc import Callable
+from typing import TYPE_CHECKING, Any, ClassVar
 
 if TYPE_CHECKING:
     from .._client import Client, ClientBase
diff --git a/pyproject.toml b/pyproject.toml
index c1fd705e..b35f889d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ requires = ["setuptools"]
 build-backend = "setuptools.build_meta"
 
 [tool.pylint.main]
-py-version = "3.9"
+py-version = "3.10"
 recursive = true
 jobs = 0
 
diff --git a/setup.py b/setup.py
index 53f75dde..c71436f6 100644
--- a/setup.py
+++ b/setup.py
@@ -27,14 +27,13 @@
         "Intended Audience :: Developers",
         "Natural Language :: English",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
         "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: 3.14",
     ],
-    python_requires=">=3.9",
+    python_requires=">=3.10",
     install_requires=[
         "python-dateutil>=2.7.5",
         "requests>=2.20",
diff --git a/tests/unit/conftest.py b/tests/unit/conftest.py
index 4b83b01a..78650e53 100644
--- a/tests/unit/conftest.py
+++ b/tests/unit/conftest.py
@@ -3,7 +3,8 @@
 from __future__ import annotations
 
 import inspect
-from typing import Callable, ClassVar, TypedDict
+from collections.abc import Callable
+from typing import ClassVar, TypedDict
 from unittest import mock
 
 import pytest
diff --git a/tox.ini b/tox.ini
index 1baff836..813895b3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py39, py310, py311, py312, py313, py314
+envlist = py310, py311, py312, py313, py314
 
 [testenv]
 passenv = FAKE_API_ENDPOINT
@@ -10,7 +10,6 @@ commands =
 
 [gh-actions]
 python =
-    3.9: py39
     3.10: py310
     3.11: py311
     3.12: py312