diff --git a/requirements.txt b/requirements.txt
index 0e060a1..6e02fc6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ absl-py==0.1.10
 argh==0.26.2
 astroid==1.6.1
 autopep8==1.3.4
-bleach==1.5.0
+bleach==3.3.0
 cachetools==2.0.1
 certifi==2018.1.18
 chardet==3.0.4