diff --git a/doc/requirements.txt b/doc/requirements.txt
index 014d7a7..9850c0d 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -1,4 +1,4 @@
-sphinx-rtd-theme==1.1.0
+sphinx-rtd-theme==1.1.1
 sphinx-argparse==0.3.2
 sphinxcontrib-applehelp==1.0.2; python_version >= "3.5"
 sphinxcontrib-devhelp==1.0.2; python_version >= "3.5"