diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index f07463b..46c772b 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', 'pypy-3.8']
+        python-version: ['3.7', '3.8', '3.9', '3.10', 'pypy-3.8']
         os: [ubuntu-latest, macos-latest, windows-latest]
     timeout-minutes: 20
 
diff --git a/README.rst b/README.rst
index 4b225e6..9d0c503 100644
--- a/README.rst
+++ b/README.rst
@@ -123,5 +123,5 @@ Command help
 
 Dependencies
 ============================================
-Python 3.6+
+Python 3.7+
 no external dependencies.
diff --git a/pyproject.toml b/pyproject.toml
index 7904513..cc15700 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ exclude = '''
 )/
 | docs/conf.py
 '''
-target-version = ['py36', 'py37', 'py38', 'py39', 'py310']
+target-version = ['py37', 'py38', 'py39', 'py310']
 
 [tool.coverage.run]
 source = ['tcolorpy']
@@ -54,7 +54,7 @@ skip_glob = [
 
 [tool.mypy]
 ignore_missing_imports = true
-python_version = 3.6
+python_version = 3.7
 
 pretty = true
 show_error_codes = true
diff --git a/setup.py b/setup.py
index 079947a..13fd4f7 100644
--- a/setup.py
+++ b/setup.py
@@ -47,7 +47,7 @@ def get_release_command_class() -> Dict[str, Type[setuptools.Command]]:
         "Source": REPOSITORY_URL,
         "Tracker": f"{REPOSITORY_URL:s}/issues",
     },
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     extras_require={"test": TESTS_REQUIRES},
     classifiers=[
         "Development Status :: 4 - Beta",
@@ -55,7 +55,6 @@ def get_release_command_class() -> Dict[str, Type[setuptools.Command]]:
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
diff --git a/tox.ini b/tox.ini
index 7f2d879..f7e48e9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{36,37,38,39,310}
+    py{37,38,39,310}
     pypy3
     build
     cov