diff --git a/CHANGELOG.md b/CHANGELOG.md
index d81409e9bc6..c946f92a4bb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -47,6 +47,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (core/ante) [\#1418](https://github.com/cosmos/ibc-go/pull/1418) `AnteDecorator` has been renamed to `RedundancyDecorator` to comply with go linting rules and to give more clarity to the purpose of the Decorator.
 * (core/ante) [\#1820](https://github.com/cosmos/ibc-go/pull/1418) `RedundancyDecorator` has been renamed to `RedundantRelayDecorator` to make the name for explicit.
 * (testing) [\#1418](https://github.com/cosmos/ibc-go/pull/1418) `MockIBCApp` has been renamed to `IBCApp` and `MockEmptyAcknowledgement` has been renamed to `EmptyAcknowledgement` to comply with go linting rules
+* (apps/27-interchain-accounts) [\#2058](https://github.com/cosmos/ibc-go/pull/2058) Added `MessageRouter` interface and replaced `*baseapp.MsgServiceRouter` with it. The controller and host keepers of apps/27-interchain-accounts have been updated to use it.
 
 ### State Machine Breaking
 
diff --git a/modules/apps/27-interchain-accounts/controller/keeper/keeper.go b/modules/apps/27-interchain-accounts/controller/keeper/keeper.go
index 6fa539a1533..4dec1b4adcc 100644
--- a/modules/apps/27-interchain-accounts/controller/keeper/keeper.go
+++ b/modules/apps/27-interchain-accounts/controller/keeper/keeper.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"strings"
 
-	baseapp "github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -31,14 +30,14 @@ type Keeper struct {
 
 	scopedKeeper capabilitykeeper.ScopedKeeper
 
-	msgRouter *baseapp.MsgServiceRouter
+	msgRouter icatypes.MessageRouter
 }
 
 // NewKeeper creates a new interchain accounts controller Keeper instance
 func NewKeeper(
 	cdc codec.BinaryCodec, key storetypes.StoreKey, paramSpace paramtypes.Subspace,
 	ics4Wrapper icatypes.ICS4Wrapper, channelKeeper icatypes.ChannelKeeper, portKeeper icatypes.PortKeeper,
-	scopedKeeper capabilitykeeper.ScopedKeeper, msgRouter *baseapp.MsgServiceRouter,
+	scopedKeeper capabilitykeeper.ScopedKeeper, msgRouter icatypes.MessageRouter,
 ) Keeper {
 	// set KeyTable if it has not already been set
 	if !paramSpace.HasKeyTable() {
diff --git a/modules/apps/27-interchain-accounts/host/keeper/keeper.go b/modules/apps/27-interchain-accounts/host/keeper/keeper.go
index 13d3f387c94..3ded03787d4 100644
--- a/modules/apps/27-interchain-accounts/host/keeper/keeper.go
+++ b/modules/apps/27-interchain-accounts/host/keeper/keeper.go
@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"strings"
 
-	baseapp "github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	storetypes "github.com/cosmos/cosmos-sdk/store/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
@@ -31,14 +30,14 @@ type Keeper struct {
 
 	scopedKeeper capabilitykeeper.ScopedKeeper
 
-	msgRouter *baseapp.MsgServiceRouter
+	msgRouter icatypes.MessageRouter
 }
 
 // NewKeeper creates a new interchain accounts host Keeper instance
 func NewKeeper(
 	cdc codec.BinaryCodec, key storetypes.StoreKey, paramSpace paramtypes.Subspace,
 	channelKeeper icatypes.ChannelKeeper, portKeeper icatypes.PortKeeper,
-	accountKeeper icatypes.AccountKeeper, scopedKeeper capabilitykeeper.ScopedKeeper, msgRouter *baseapp.MsgServiceRouter,
+	accountKeeper icatypes.AccountKeeper, scopedKeeper capabilitykeeper.ScopedKeeper, msgRouter icatypes.MessageRouter,
 ) Keeper {
 	// ensure ibc interchain accounts module account is set
 	if addr := accountKeeper.GetModuleAddress(icatypes.ModuleName); addr == nil {
diff --git a/modules/apps/27-interchain-accounts/types/router.go b/modules/apps/27-interchain-accounts/types/router.go
new file mode 100644
index 00000000000..007091b9d0d
--- /dev/null
+++ b/modules/apps/27-interchain-accounts/types/router.go
@@ -0,0 +1,12 @@
+package types
+
+import (
+	baseapp "github.com/cosmos/cosmos-sdk/baseapp"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+)
+
+// MessageRouter ADR 031 request type routing
+// https://github.com/cosmos/cosmos-sdk/blob/main/docs/architecture/adr-031-msg-service.md
+type MessageRouter interface {
+	Handler(msg sdk.Msg) baseapp.MsgServiceHandler
+}