diff --git a/requirements.txt b/requirements.txt
index f308d6d9..ac8290a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 absl-py==0.1.12
 appnope==0.1.0
 astor==0.6.2
-bleach==1.5.0
+bleach==3.1.4
 cycler==0.10.0
 decorator==4.2.1
 gast==0.2.0