diff --git a/requirements.txt b/requirements.txt
index ecbd774..de23d2c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ aiorpcX==0.18.4
 async-timeout==3.0.1
 attrs==19.3.0
 backcall==0.1.0
-bleach==3.1.0
+bleach==3.3.0
 bokeh==1.4.0
 Cartopy==0.17.0
 certifi==2019.11.28