diff --git a/docs/changelog.md b/docs/changelog.md
index 99750f991..39fb8eef8 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -6,7 +6,7 @@ nav_order: 2
 
 # Changelog
 
-## Unreleased changes
+## 0.21.5 Secure discovery bugfix 2022-06-28
 
 ### Bugfix
 
diff --git a/xknx/__version__.py b/xknx/__version__.py
index fdd2930dd..34721bf7f 100644
--- a/xknx/__version__.py
+++ b/xknx/__version__.py
@@ -1,3 +1,3 @@
 """XKNX version."""
 
-__version__ = "0.21.4"
+__version__ = "0.21.5"