diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbf36b45e..bedb0202e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,22 @@
 # Changelog
 
+## v1.1.3
+*Mar 4, 2024*
+
+* Modify codec for the compatibility with IBC relayer.
+
+### BREAKING CHANGE
+- Nothing
+
+### FEATURES
+- Nothing
+
+### IMPROVEMENTS
+- Nothing
+
+### BUG FIXES
+- [codec] [\#762](https://github.com/Finschia/ostracon/pull/762) Modify proto pubkey regisiter name for IBC relayer compatibility
+
 ## v1.1.2
 *Oct 16, 2023*