diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9526bbb35ebb40744ed9201d7e59deb68e0f26de..9c19d8dbc7b2f5b0caf2828b929b77501d491144 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -179,7 +179,7 @@ tox:
   parallel:
     matrix:
       - PY_MAJVER: 3
-        PY_MINVER: [8, 9, 10, 11, 12]
+        PY_MINVER: [8, 9, 10, 11, 12, 13]
   needs: []
 
 pages:
diff --git a/tox.ini b/tox.ini
index b25b435b504d2186daf1ce6d991c32ca0346e0c5..326a3f0a319c1a7194c65132dced96f91e00f4d0 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py{38,39,310,311,312}-{generator,noaccel}, py{39,310,311,312}-numpy2, py{38,39,310,311,312}-accel-{win,nix}, py{38,39,310,311,312}-streams, py{38,39,310,311,312}-functional
+envlist = py{38,39,310,311,312,313}-{generator,noaccel}, py{39,310,311,312,313}-numpy2, py{38,39,310,311,312,313}-accel-{win,nix}, py{38,39,310,311,312,313}-streams, py{38,39,310,311,312,313}-functional
 skipsdist = True
 
 [pytest]
@@ -17,9 +17,9 @@ setenv =
     USERNAME = foo
 deps =
     accel-nix: lxml
-    py{38,39,310,311,312}-generator: numpy<2.0
-    py{39,310,311,312}-numpy2: numpy>2.0
-    py{38,39,310,311,312}: mako>=1.1.0
+    py{38,39,310,311,312,313}-generator: numpy<2.0
+    py{39,310,311,312,313}-numpy2: numpy>2.0
+    py{38,39,310,311,312,313}: mako>=1.1.0
 
     {accel,noaccel,generator,streams}: pytest>=6.2.5
     functional: pytest>=3.9