diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2bd1b34..c7db593 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
-## 4.3.0
+## 5.0.0
+- Tokens created prior to this release will no longer work
 - Fix migration reverse flow, enable migrate 0
 - Various documentation fixes and improvements
 - Drop `cryptography` in favor of hashlib