diff --git a/tox.ini b/tox.ini
index 8afe14ad..b8566e5a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,7 +26,7 @@ deps =
     dj30: django>=3.0,<3.1
     wt23: wagtail>=2.3,<2.4
     wt27: wagtail>=2.7,<2.8
-    wt28: wagtail==2.8rc1
+    wt28: wagtail>=2.8,<2.9
 setenv =
     DJANGO_SETTINGS_MODULE=tests._sandbox.settings