diff --git a/tox.ini b/tox.ini
index 5b129516..9621d92b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -18,7 +18,7 @@ commands =
     pytest -s --cov=pelican pelican
 
 [testenv:docs]
-basepython = python3.9
+basepython = python3.11
 deps =
     -rrequirements/docs.pip
 changedir = docs
@@ -37,7 +37,7 @@ import-order-style = cryptography
 max-line-length = 88
 
 [testenv:flake8]
-basepython = python3.9
+basepython = python3.11
 skip_install = true
 deps =
     -rrequirements/style.pip