diff --git a/requirements.txt b/requirements.txt
index 9f8a8dd..bd844fb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ alabaster==0.7.11
 astor==0.6.2
 Babel==2.6.0
 backcall==0.1.0
-bleach==1.5.0
+bleach==3.1.4
 certifi==2018.4.16
 chardet==3.0.4
 cycler==0.10.0