diff --git a/tox.ini b/tox.ini
index 6706ad4..fdc8d81 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,13 @@
 [tox]
 envlist =
+    py37-2.6.X,
+    py36-2.6.X,
+    py35-2.6.X,
+    py34-2.6.X,
+    py37-2.5.X,
+    py36-2.5.X,
+    py35-2.5.X,
+    py34-2.5.X,
     py37-2.4.X,
     py36-2.4.X,
     py35-2.4.X,
@@ -29,6 +37,46 @@ envlist =
 commands =
     {envpython} runtests.py
 
+[testenv:py37-2.6.X]
+basepython = python3.7
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py36-2.6.X]
+basepython = python3.6
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py35-2.6.X]
+basepython = python3.5
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py34-2.6.X]
+basepython = python3.4
+deps =
+    wagtail>=2.6,<2.7
+
+[testenv:py37-2.5.X]
+basepython = python3.7
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py36-2.5.X]
+basepython = python3.6
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py35-2.5.X]
+basepython = python3.5
+deps =
+    wagtail>=2.5,<2.6
+
+[testenv:py34-2.5.X]
+basepython = python3.4
+deps =
+    wagtail>=2.5,<2.6
+
 [testenv:py37-2.4.X]
 basepython = python3.7
 deps =