diff --git a/requirements-dev.txt b/requirements-dev.txt
index a37a086..7a5f4ac 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-bleach==3.3.1
+bleach==4.0.0
 bump2version==1.0.1
 bumpversion==0.6.0
 certifi==2021.5.30