diff --git a/requirements.txt b/requirements.txt
index 88e45ef..0aea83d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ absl-py==0.2.2
 astor==0.6.2
 backcall==0.1.0
 backports-abc==0.5
-bleach==1.5.0
+bleach==3.1.4
 cloudpickle==0.5.3
 cycler==0.10.0
 Cython==0.28.3