diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 03f6363..d33a86b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,7 +19,6 @@ jobs:
     strategy:
       matrix:
         tox_env:
-          - py36
           - py37
           - py38
           - py39
diff --git a/README.md b/README.md
index f17ef4a..d43f787 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,6 @@ python setup.py install
 
 ### Supported Python versions in API v2.0.1
 
-- Python 3.6
 - Python 3.7
 - Python 3.8
 - Python 3.9
diff --git a/pyproject.toml b/pyproject.toml
index f2084f8..6fb2a87 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,10 @@
 [tool.black]
 line-length = 99
-target-version = ['py36']
+target-version = ['py37']
 skip-string-normalization = true
 
 [tool.ruff]
+target-version = "py37"
 exclude = [
     ".git",
     "ENV",
@@ -34,6 +35,7 @@ select = [
     "F",
     "I",
     "S",
+    "UP",
     "W",
 ]
 
diff --git a/setup.cfg b/setup.cfg
index 037abb2..2c4d217 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -11,7 +11,7 @@ packages=['upcloud_api', 'upcloud_api.cloud_manager']
 license = MIT
 
 [options]
-python_requires = >=3.6, <4
+python_requires = >=3.7, <4
 setup_requires =
     setuptools
 install_requires =
@@ -19,40 +19,3 @@ install_requires =
 packages =
     upcloud_api
     upcloud_api.cloud_manager
-
-[bdist_wheel]
-universal = 1
-
-[flake8]
-max-line-length = 99
-extend-ignore =
-    # ignore line length problems; those are fixed by black
-    E501
-    # via black
-    E203
-    W503
-    # docstring format leniency
-    D100
-    D104
-    D105
-    D200
-    D202
-    D205
-    D400
-    D401
-    D403
-    # things from `hacking` we don't care about
-    H101
-    H301
-    H306
-    H404
-    H405
-per-file-ignores =
-    test/*: D101,D102,D103,F841,S101,S106,B011
-    # ignore "imported but not used" in any __init__.pys
-    */__init__.py: F401
-exclude =
-    .git
-    ENV
-    __pycache__
-    build
diff --git a/tox.ini b/tox.ini
index bcec688..2f685e5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py36, py37, py38, py39, pypy3
+envlist = py37, py38, py39, pypy3
 skip_missing_interpreters = True
 
 [testenv]