1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index d9e08c3a..c856f713 100644
--- a/tox.ini
+++ b/tox.ini
@@ -74,6 +74,6 @@ skipsdist = True
 usedevelop = True
 changedir = doc/
 deps =
-    sphinx
+    -r doc/requirements.txt
 commands =
     sphinx-build -b html . build