diff --git a/mega_applications/flask_web_app/requirements.txt b/mega_applications/flask_web_app/requirements.txt
index dd37af3..d4e22b0 100644
--- a/mega_applications/flask_web_app/requirements.txt
+++ b/mega_applications/flask_web_app/requirements.txt
@@ -6,7 +6,7 @@ backports.shutil-get-terminal-size==1.0.0
 backports.ssl-match-hostname==3.5.0.1
 beautifulsoup4==4.6.0
 behave==1.2.5
-bleach==3.1.4
+bleach==3.3.0
 bokeh==0.12.9
 boto==2.39.0
 branca==0.2.0