diff --git a/requirements.txt b/requirements.txt
index c4de158360..5c12d1a75f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ pynacl>=1.4.0
 requests>=2.14.0
 pyjwt>=2.0
 sphinx<3
-sphinx-rtd-theme<1.1
+sphinx-rtd-theme<1.3
 Deprecated