diff --git a/.circleci/config.yml b/.circleci/config.yml
index dfe6f3644..300685df7 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -81,11 +81,22 @@ jobs:
           version: py312
           sphinx-version: "72,73,74,80,latest,dev"
 
+  py313:
+    docker:
+      - image: 'cimg/python:3.13'
+    steps:
+      - run-tox:
+          version: py313
+          sphinx-version: "72,73,74,80,latest,dev"
+
 workflows:
   version: 2
   tests:
     jobs:
       - build
+      - py313:
+          requires:
+            - build
       - py312:
           requires:
             - build
diff --git a/docs/contributing.rst b/docs/contributing.rst
index fe54e1cf1..4c11cf67a 100644
--- a/docs/contributing.rst
+++ b/docs/contributing.rst
@@ -227,7 +227,7 @@ Releasing the theme
 
 To release a new version of the theme, core team will take the following steps:
 
-#. Install the required depedencies with ``pip install '.[dev]'``.
+#. Install the required dependencies with ``pip install '.[dev]'``.
 #. Bump the version by running ``bump2version [major|minor|patch|dev]``.
    This will automatically increase the correct part(s) of the version number,
    you do not need to specify the exact version number.
diff --git a/tox.ini b/tox.ini
index a010796ac..5eef94e6f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,8 +1,8 @@
 [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{310,311,312}-sphinx{latest,dev}{-qa}
+    py{39,310,311,312,313}-sphinx{72,73,74,80,81}{-qa}
+    py{310,311,312,313}-sphinx{latest,dev}{-qa}
 
 [testenv]
 setenv =
@@ -16,7 +16,10 @@ deps =
     sphinx70: Sphinx>=7.0,<7.1
     sphinx71: Sphinx>=7.1,<7.2
     sphinx72: Sphinx>=7.2,<7.3
+    sphinx73: Sphinx>=7.3,<7.4
+    sphinx74: Sphinx>=7.4,<7.5
     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 =