diff --git a/requirements.txt b/requirements.txt
index 8c026c37f..d660c25c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 alembic==1.14.1
 apscheduler==3.11.3
 bcrypt==4.3.0
-bleach[css]==6.2.0
+bleach[css]==6.4.0
 colander==2.0
 dogpile.cache==1.3.4
 elasticsearch==2.4.1