diff --git a/.changelog/unreleased/improvements/1277-refactor-cosmwasm-response-types.md b/.changelog/unreleased/improvements/1277-refactor-cosmwasm-response-types.md
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+++ b/.changelog/unreleased/improvements/1277-refactor-cosmwasm-response-types.md
@@ -0,0 +1,2 @@
+- [ibc-client-cw] Refactor CosmWasm response types to match `08-wasm` client API
+  ([\#1277](https://github.com/cosmos/ibc-rs/issues/1277))