diff --git a/setup.py b/setup.py
index e5a7198..7651d5d 100755
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@ def get_version():
     url="https://github.com/executablebooks/sphinx-tabs",
     license="MIT",
     python_requires="~=3.7",
-    install_requires=["sphinx", "pygments", "docutils~=0.18.0"],
+    install_requires=["sphinx", "pygments", "docutils>=0.18.0,<0.21.0"],
     extras_require={
         "testing": [
             "coverage",
@@ -51,6 +51,8 @@ def get_version():
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "Programming Language :: Python",
         "Topic :: Documentation :: Sphinx",
         "Topic :: Documentation",