diff --git a/dev.requirements.txt b/dev.requirements.txt
index 2abe529..eaeec21 100644
--- a/dev.requirements.txt
+++ b/dev.requirements.txt
@@ -1,7 +1,7 @@
 alabaster==0.7.12
 appdirs==1.4.3
 Babel==2.8.0
-bleach==3.1.4
+bleach==3.3.0
 certifi==2019.11.28
 cffi==1.14.0
 chardet==3.0.4