diff --git a/CHANGES.rst b/CHANGES.rst
index 60be8e7b5..a1cc88fe2 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,8 +1,8 @@
 Synapse 0.33.1 (2018-08-02)
 ===========================
 
-Bugfixes
---------
+SECURITY FIXES
+--------------
 
 - Fix a potential issue where servers could request events for rooms they have not joined. (`#3641 <https://github.com/matrix-org/synapse/issues/3641>`_)
 - Fix a potential issue where users could see events in private rooms before they joined. (`#3642 <https://github.com/matrix-org/synapse/issues/3642>`_)