diff --git a/tox.ini b/tox.ini
index ca3ad1e..a1979c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,7 @@
 
 [tox]
 isolated_build = true
-envlist = begin,py39,py310,py311,py312,coverage,security,lint,reuse
+envlist = begin,py39,py310,py311,py312,py313,coverage,security,lint,reuse
 
 [testenv]
 allow_externals = pytest, coverage
@@ -41,6 +41,11 @@ commands =
 commands =
     pytest --cov-append --cov={envsitepackagesdir}/incorporealcms/ --cov-branch
 
+[testenv:py313]
+# run pytest with coverage
+commands =
+    pytest --cov-append --cov={envsitepackagesdir}/incorporealcms/ --cov-branch
+
 [testenv:coverage]
 # report on coverage runs from above
 skip_install = true