diff --git a/docs/requirements.txt b/docs/requirements.txt
index a8c1ea3c..0b960db5 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -3,7 +3,7 @@ appnope==0.1.0
 asn1crypto==0.22.0
 astroid==1.5.3
 Babel==2.6.0
-bleach==2.1.1
+bleach==3.1.4
 certifi==2018.4.16
 cffi==1.10.0
 chardet==3.0.4