diff --git a/docs/docs/05-migrations/13-v8-to-v9.md b/docs/docs/05-migrations/13-v8-to-v9.md
index 6479e64ae63..02d0ae5bcff 100644
--- a/docs/docs/05-migrations/13-v8-to-v9.md
+++ b/docs/docs/05-migrations/13-v8-to-v9.md
@@ -26,8 +26,8 @@ There are four sections based on the four potential user groups of this document
 
 ### API removals
 
-The `exported.ChannelI` and `exported.CounterpartyChannelI` interfaces has been removed. Please use the concrete types. 
-The `exported.ConnectionI` interface has been removed. Please use the concrete types. 
+The `exported.ChannelI` and `exported.CounterpartyChannelI` interfaces have been removed. Please use the concrete types.
+The `exported.ConnectionI` and `exported.CounterpartyConnectionI` interfaces have been removed. Please use the concrete types.
 
 The functions `GetState()`, `GetOrdering()`, `GetCounterparty()`, `GetConnectionHops()`, `GetVersion()` of the `Channel` type have been removed.
 The functions `GetPortID()`, `GetChannelID()` of the `CounterpartyChannel` type have been removed.
diff --git a/modules/core/03-connection/types/codec.go b/modules/core/03-connection/types/codec.go
index 9da606deab4..628fbf06526 100644
--- a/modules/core/03-connection/types/codec.go
+++ b/modules/core/03-connection/types/codec.go
@@ -5,18 +5,11 @@ import (
 	codectypes "github.com/cosmos/cosmos-sdk/codec/types"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/msgservice"
-
-	"github.com/cosmos/ibc-go/v8/modules/core/exported"
 )
 
 // RegisterInterfaces register the ibc interfaces submodule implementations to protobuf
 // Any.
 func RegisterInterfaces(registry codectypes.InterfaceRegistry) {
-	registry.RegisterInterface(
-		"ibc.core.connection.v1.CounterpartyConnectionI",
-		(*exported.CounterpartyConnectionI)(nil),
-		&Counterparty{},
-	)
 	registry.RegisterImplementations(
 		(*sdk.Msg)(nil),
 		&MsgConnectionOpenInit{},
diff --git a/modules/core/03-connection/types/codec_test.go b/modules/core/03-connection/types/codec_test.go
index 829ca77d7bc..899c258e184 100644
--- a/modules/core/03-connection/types/codec_test.go
+++ b/modules/core/03-connection/types/codec_test.go
@@ -18,11 +18,6 @@ func TestCodecTypeRegistration(t *testing.T) {
 		typeURL string
 		expPass bool
 	}{
-		{
-			"success: Counterparty",
-			sdk.MsgTypeURL(&types.Counterparty{}),
-			true,
-		},
 		{
 			"success: MsgConnectionOpenInit",
 			sdk.MsgTypeURL(&types.MsgConnectionOpenInit{}),
diff --git a/modules/core/03-connection/types/connection.go b/modules/core/03-connection/types/connection.go
index 3c68dd93eab..a3c5fac54c1 100644
--- a/modules/core/03-connection/types/connection.go
+++ b/modules/core/03-connection/types/connection.go
@@ -26,7 +26,7 @@ func (c ConnectionEnd) GetClientID() string {
 }
 
 // GetCounterparty implements the Connection interface
-func (c ConnectionEnd) GetCounterparty() exported.CounterpartyConnectionI {
+func (c ConnectionEnd) GetCounterparty() Counterparty {
 	return c.Counterparty
 }
 
@@ -58,8 +58,6 @@ func (c ConnectionEnd) ValidateBasic() error {
 	return c.Counterparty.ValidateBasic()
 }
 
-var _ exported.CounterpartyConnectionI = (*Counterparty)(nil)
-
 // NewCounterparty creates a new Counterparty instance.
 func NewCounterparty(clientID, connectionID string, prefix commitmenttypes.MerklePrefix) Counterparty {
 	return Counterparty{
diff --git a/modules/core/exported/connection.go b/modules/core/exported/connection.go
index 00b55913bd0..221096b4ccb 100644
--- a/modules/core/exported/connection.go
+++ b/modules/core/exported/connection.go
@@ -2,11 +2,3 @@ package exported
 
 // LocalhostConnectionID is the sentinel connection ID for the localhost connection.
 const LocalhostConnectionID string = "connection-localhost"
-
-// CounterpartyConnectionI describes the required methods for a counterparty connection.
-type CounterpartyConnectionI interface {
-	GetClientID() string
-	GetConnectionID() string
-	GetPrefix() Prefix
-	ValidateBasic() error
-}