diff --git a/requirements.txt b/requirements.txt
index 9b4acf2..5a6a5a3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ astropy==4.0.1.post1
 atomicwrites==1.3.0
 attrs==19.3.0
 backcall==0.1.0
-bleach==3.1.4
+bleach==3.3.0
 boto==2.49.0
 boto3==1.12.9
 botocore==1.15.9