diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 9f04f388..49040c9f 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-18.04
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: [3.7, 3.8, 3.9]
         use-conda: [true, false]
         use-dist: [false]
         include:
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index b28bd3e2..136cd94f 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -49,7 +49,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        python: [36, 37, 38, 39]
+        python: [37, 38, 39]
         bitness: [32, 64]
         manylinux_image: [manylinux2014]
         include:
diff --git a/docs/source/index.rst b/docs/source/index.rst
index 662a6175..8aafab4b 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -52,7 +52,7 @@ Basic usage
 Installation
 ============
 
-*ConfigSpace* requires Python 3.6 or higher.
+*ConfigSpace* requires Python 3.7 or higher.
 
 *ConfigSpace* can be installed with *pip*:
 
diff --git a/setup.py b/setup.py
index 999ebd0b..9883f425 100644
--- a/setup.py
+++ b/setup.py
@@ -51,9 +51,8 @@ def finalize_options(self):
 TEST_SUITE = "pytest"
 SETUP_REQS = ['numpy', 'cython']
 INSTALL_REQS = ['numpy', 'cython', 'pyparsing']
-MIN_PYTHON_VERSION = '>=3.6'
-CLASSIFIERS = ['Programming Language :: Python :: 3.6',
-               'Programming Language :: Python :: 3.7',
+MIN_PYTHON_VERSION = '>=3.7'
+CLASSIFIERS = ['Programming Language :: Python :: 3.7',
                'Programming Language :: Python :: 3.8',
                'Programming Language :: Python :: 3.9',
                'Development Status :: 4 - Beta',