diff --git a/test-reqs.txt b/test-reqs.txt
index a08cc8300..4ebb36da9 100644
--- a/test-reqs.txt
+++ b/test-reqs.txt
@@ -15,3 +15,4 @@ requests
 html5lib
 enum34
 typing
+https://github.com/sphinx-doc/sphinxcontrib-websupport/archive/master.zip
diff --git a/tox.ini b/tox.ini
index 530e5b941..17738264c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@ deps=
     mock
     enum34
     typing
+    https://github.com/sphinx-doc/sphinxcontrib-websupport/archive/master.zip
 setenv =
     SPHINX_TEST_TEMPDIR = {envdir}/testbuild
     PYTHONDONTWRITEBYTECODE = true