1 files changed, 3 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini
index ed8ebef..e34172a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@ envlist =
     py39,py39-pure
     py310,py310-pure
     py311,py311-pure
+    py312,py312-pure
     pypy3
     docs
     coverage
@@ -16,7 +17,9 @@ envlist =
 
 [testenv]
 usedevelop = true
+pip_pre = py312: true
 deps =
+    Sphinx
 setenv =
     pure: PURE_PYTHON=1
     !pure-!pypy3: PURE_PYTHON=0