diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4075e37..ce081cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## NOT RELEASED
 
+## 1.12.3
+
 ### Changed
 
 - Enable compiler optimization for the `sprintf` function.