diff --git a/.circleci/config.yml b/.circleci/config.yml
index 26109fcd..4eaf808f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -79,6 +79,7 @@ workflows:
                  - "3.10"
                  - "3.11"
                  - "3.12"
+                 - "3.13"
       - test_nooptionals:
           matrix:
             parameters:
diff --git a/setup.py b/setup.py
index 1665ed7c..0d5d887f 100644
--- a/setup.py
+++ b/setup.py
@@ -42,6 +42,7 @@
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python :: Implementation :: PyPy",
         "Topic :: System :: Monitoring",
diff --git a/tox.ini b/tox.ini
index 354ad69c..deb74e14 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = coverage-clean,py{3.9,3.10,3.11,3.12,py3.9,3.9-nooptionals},coverage-report,flake8,isort,mypy
+envlist = coverage-clean,py{3.9,3.10,3.11,3.12,3.13,py3.9,3.9-nooptionals},coverage-report,flake8,isort,mypy
 
 [testenv]
 deps =