1 files changed, 1 insertions, 1 deletions

diff --git a/rtd.txt b/rtd.txt
index b449ac73c..4aecd9933 100644
--- a/rtd.txt
+++ b/rtd.txt
@@ -1,4 +1,4 @@
+Sphinx >= 1.2.3
 repoze.sphinx.autointerface
 repoze.lru
 pylons_sphinx_latesturl
-