diff --git a/cover/requirements.txt b/cover/requirements.txt
index 1a01ec3..e0f4118 100644
--- a/cover/requirements.txt
+++ b/cover/requirements.txt
@@ -1,7 +1,7 @@
 appnope==0.1.0
 attrs==18.2.0
 backcall==0.1.0
-bleach==3.0.2
+bleach==3.3.0
 cachetools==2.1.0
 certifi==2018.10.15
 chardet==3.0.4