diff --git a/requirement.txt b/requirement.txt
index 42e25c1..5580851 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -83,7 +83,7 @@ backports-abc==0.5
 backports.functools-lru-cache==1.5
 backports.shutil-get-terminal-size==1.0.0
 backports.weakref==1.0.post1
-bleach==1.5.0
+bleach==3.3.0
 boto3==1.7.62
 botocore==1.10.62
 cachetools==2.1.0