diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76905bb..1e38eb1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+### 1.2.3
+- Initial support for Pale Moon 33
+
 ### 1.2.2
 - Initial support for Pale Moon 32