diff --git a/.circleci/config.yml b/.circleci/config.yml
index dfe6f3644..8237eabff 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -64,14 +64,14 @@ jobs:
     steps:
       - run-tox:
           version: py310
-          sphinx-version: "60,61,62,70,71,72,73,74,80,latest,dev"
+          sphinx-version: "60,61,62,70,71,72,73,74,80,81"
   py311:
     docker:
       - image: 'cimg/python:3.11'
     steps:
       - run-tox:
           version: py311
-          sphinx-version: "72,73,74,80,latest,dev"
+          sphinx-version: "72,73,74,80,81,latest,dev"
 
   py312:
     docker:
@@ -79,7 +79,7 @@ jobs:
     steps:
       - run-tox:
           version: py312
-          sphinx-version: "72,73,74,80,latest,dev"
+          sphinx-version: "72,73,74,80,81,latest,dev"
 
 workflows:
   version: 2
diff --git a/tox.ini b/tox.ini
index a010796ac..27905a845 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 envlist =
     py{38,39,310}-sphinx{60,61,62,70,71}{-qa}
-    py{39,310,311,312}-sphinx{72,73,74,80}{-qa}
+    py{39,310,311,312}-sphinx{72,73,74,80,81}{-qa}
     py{310,311,312}-sphinx{latest,dev}{-qa}
 
 [testenv]
@@ -17,6 +17,7 @@ deps =
     sphinx71: Sphinx>=7.1,<7.2
     sphinx72: Sphinx>=7.2,<7.3
     sphinx80: Sphinx>=8.0,<8.1
+    sphinx81: Sphinx>=8.1,<8.2
     sphinxlatest: Sphinx
     sphinxdev: https://github.com/sphinx-doc/sphinx/archive/refs/heads/master.zip
 allowlist_externals =