diff --git a/setup.py b/setup.py
index d05843c7..1e97bf7c 100644
--- a/setup.py
+++ b/setup.py
@@ -20,7 +20,7 @@
         # https://github.com/pallets/jinja/issues/1585
         'markupsafe==2.0.1',
     ],
-    python_requires='>=3.8',
+    python_requires='>=3.9',
     classifiers=[
         'Framework :: Sphinx :: Extension',
         'Intended Audience :: Developers',
@@ -28,7 +28,6 @@
         'Development Status :: 5 - Production/Stable',
         'License :: OSI Approved :: MIT License',
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
diff --git a/tox.ini b/tox.ini
index 30da8ed3..69da1600 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,12 +1,11 @@
 [tox]
 envlist =
-    py{38,39,310,311}-sphinx5
-    py{38,39,310,311}-sphinx6
-    py{38,39,310,311}-sphinx7
+    py{39,310,311}-sphinx5
+    py{39,310,311}-sphinx6
+    py{39,310,311}-sphinx7
 
 [gh-actions]
 python =
-  3.8: py38
   3.9: py39
   3.10: py310
   3.11: py311