diff --git a/projection_optimize/requirements.txt b/projection_optimize/requirements.txt
index 60d66c7..98def48 100644
--- a/projection_optimize/requirements.txt
+++ b/projection_optimize/requirements.txt
@@ -7,7 +7,7 @@ atari-py==0.2.6
 attrs==19.2.0
 backcall==0.1.0
 beautifulsoup4==4.9.0
-bleach==3.1.4
+bleach==3.3.0
 bokeh==1.4.0
 box2d-py==2.3.8
 cachetools==4.0.0