diff --git a/workshops/data-science/requirements.txt b/workshops/data-science/requirements.txt
index 1ed5401..e45909d 100644
--- a/workshops/data-science/requirements.txt
+++ b/workshops/data-science/requirements.txt
@@ -1,7 +1,7 @@
 attrs==19.1.0
 backcall==0.1.0
 beautifulsoup4==4.8.0
-bleach==3.1.0
+bleach==3.3.0
 certifi==2019.9.11
 chardet==3.0.4
 Click==7.0