diff --git a/CHANGELOG.md b/CHANGELOG.md
index f23271ee9b4..e6a4b9e45d5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,22 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [Unreleased]
+
+### Dependencies
+
+* [\#1525](https://github.com/cosmos/ibc-go/pull/1525) Bump SDK version to v0.45.5
+
+### API Breaking
+
+### State Machine Breaking
+
+### Improvements
+
+### Features
+
+### Bug Fixes
+
 ## [v2.3.0](https://github.com/cosmos/ibc-go/releases/tag/v2.3.0) - 2022-04-16
 
 ### Dependencies
diff --git a/go.mod b/go.mod
index 501729785fc..9f8d1d9b3a3 100644
--- a/go.mod
+++ b/go.mod
@@ -7,7 +7,7 @@ replace github.com/gogo/protobuf => github.com/regen-network/protobuf v1.3.3-alp
 require (
 	github.com/armon/go-metrics v0.3.10
 	github.com/confio/ics23/go v0.7.0
-	github.com/cosmos/cosmos-sdk v0.45.4
+	github.com/cosmos/cosmos-sdk v0.45.5
 	github.com/gogo/protobuf v1.3.3
 	github.com/golang/protobuf v1.5.2
 	github.com/gorilla/mux v1.8.0
diff --git a/go.sum b/go.sum
index 49d4ce28cd0..071cdf4e34e 100644
--- a/go.sum
+++ b/go.sum
@@ -222,8 +222,8 @@ github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfc
 github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
 github.com/cosmos/btcutil v1.0.4 h1:n7C2ngKXo7UC9gNyMNLbzqz7Asuf+7Qv4gnX/rOdQ44=
 github.com/cosmos/btcutil v1.0.4/go.mod h1:Ffqc8Hn6TJUdDgHBwIZLtrLQC1KdJ9jGJl/TvgUaxbU=
-github.com/cosmos/cosmos-sdk v0.45.4 h1:eStDAhJdMY8n5arbBRe+OwpNeBSunxSBHp1g55ulfdA=
-github.com/cosmos/cosmos-sdk v0.45.4/go.mod h1:WOqtDxN3eCCmnYLVla10xG7lEXkFjpTaqm2a2WasgCc=
+github.com/cosmos/cosmos-sdk v0.45.5 h1:GVrZM+lss6y626Pq6loxh/3KLRgK/J6/alTkcKkYmGU=
+github.com/cosmos/cosmos-sdk v0.45.5/go.mod h1:WOqtDxN3eCCmnYLVla10xG7lEXkFjpTaqm2a2WasgCc=
 github.com/cosmos/go-bip39 v0.0.0-20180819234021-555e2067c45d/go.mod h1:tSxLoYXyBmiFeKpvmq4dzayMdCjCnu8uqmCysIGBT2Y=
 github.com/cosmos/go-bip39 v1.0.0 h1:pcomnQdrdH22njcAatO0yWojsUnCO3y2tNoV1cb6hHY=
 github.com/cosmos/go-bip39 v1.0.0/go.mod h1:RNJv0H/pOIVgxw6KS7QeX2a0Uo0aKUlfhZ4xuwvCdJw=