diff --git a/app/app.go b/app/app.go
index 2e06ecf03..2fd1ed416 100644
--- a/app/app.go
+++ b/app/app.go
@@ -121,6 +121,7 @@ import (
 	v4_5 "github.com/notional-labs/centauri/v5/app/upgrades/v4_5"
 	v4_5_1 "github.com/notional-labs/centauri/v5/app/upgrades/v4_5_1"
 	v5_1_0 "github.com/notional-labs/centauri/v5/app/upgrades/v5_1_0"
+	v5_2_0 "github.com/notional-labs/centauri/v5/app/upgrades/v5_2_0"
 
 	upgrades "github.com/notional-labs/centauri/v5/app/upgrades"
 )
@@ -141,7 +142,7 @@ var (
 	EnableSpecificProposals = ""
 
 	Upgrades = []upgrades.Upgrade{v4.Upgrade, v5.Upgrade}
-	Forks    = []upgrades.Fork{v4_5.Fork, v4_5_1.Fork, v5_1_0.Fork}
+	Forks    = []upgrades.Fork{v4_5.Fork, v4_5_1.Fork, v5_1_0.Fork, v5_2_0.Fork}
 )
 
 // GetEnabledProposals parses the ProposalsEnabled / EnableSpecificProposals values to
diff --git a/app/upgrades/v5_2_0/constants.go b/app/upgrades/v5_2_0/constants.go
new file mode 100644
index 000000000..8198d0e74
--- /dev/null
+++ b/app/upgrades/v5_2_0/constants.go
@@ -0,0 +1,18 @@
+package v5_2_0
+
+import "github.com/notional-labs/centauri/v5/app/upgrades"
+
+const (
+	// UpgradeName defines the on-chain upgrade name for the Composable v5 upgrade.
+	UpgradeName = "v5_2_0"
+
+	// UpgradeHeight defines the block height at which the Composable v6 upgrade is
+	// triggered.
+	UpgradeHeight = 1769900
+)
+
+var Fork = upgrades.Fork{
+	UpgradeName:    UpgradeName,
+	UpgradeHeight:  UpgradeHeight,
+	BeginForkLogic: RunForkLogic,
+}
diff --git a/app/upgrades/v5_2_0/fork.go b/app/upgrades/v5_2_0/fork.go
new file mode 100644
index 000000000..4bed3bb71
--- /dev/null
+++ b/app/upgrades/v5_2_0/fork.go
@@ -0,0 +1,87 @@
+package v5_2_0
+
+import (
+	"github.com/cosmos/cosmos-sdk/codec"
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
+
+	transfertypes "github.com/cosmos/ibc-go/v7/modules/apps/transfer/types"
+	clienttypes "github.com/cosmos/ibc-go/v7/modules/core/02-client/types"
+	"github.com/cosmos/ibc-go/v7/modules/core/exported"
+	ibckeeper "github.com/cosmos/ibc-go/v7/modules/core/keeper"
+	wasm08types "github.com/cosmos/ibc-go/v7/modules/light-clients/08-wasm/types"
+
+	"github.com/notional-labs/centauri/v5/app/keepers"
+)
+
+const (
+	newWasmCodeID      = "ad84ee3292e28b4e46da16974c118d40093e1a6e28a083f2f045f68fde7fb575"
+	clientId           = "08-wasm-05"
+	substituteClientId = "08-wasm-132"
+)
+
+func RunForkLogic(ctx sdk.Context, keepers *keepers.AppKeepers) {
+	ctx.Logger().Info("Applying v5_2_0 upgrade" +
+		"Upgrade 08-wasm contract",
+	)
+
+	UpdateWasmContract(ctx, keepers.IBCKeeper)
+
+	err := ClientUpdate(ctx, keepers.IBCKeeper.Codec(), keepers.IBCKeeper, clientId, substituteClientId)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func UpdateWasmContract(ctx sdk.Context, ibckeeper *ibckeeper.Keeper) {
+	unknownClientState, found := ibckeeper.ClientKeeper.GetClientState(ctx, clientId)
+	if !found {
+		panic("cannot update client with ID")
+	}
+
+	clientState, ok := unknownClientState.(*wasm08types.ClientState)
+	if !ok {
+		panic("cannot update client with ID")
+	}
+
+	code, err := transfertypes.ParseHexHash(newWasmCodeID)
+	if err != nil {
+		panic(err)
+	}
+
+	clientState.CodeId = code
+
+	ibckeeper.ClientKeeper.SetClientState(ctx, clientId, clientState)
+}
+
+func ClientUpdate(ctx sdk.Context, codec codec.BinaryCodec, ibckeeper *ibckeeper.Keeper, subjectClientId string, substituteClientId string) error {
+	subjectClientState, found := ibckeeper.ClientKeeper.GetClientState(ctx, subjectClientId)
+	if !found {
+		return sdkerrors.Wrapf(clienttypes.ErrClientNotFound, "subject client with ID %s", subjectClientId)
+	}
+
+	subjectClientStore := ibckeeper.ClientKeeper.ClientStore(ctx, subjectClientId)
+
+	substituteClientState, found := ibckeeper.ClientKeeper.GetClientState(ctx, substituteClientId)
+	if !found {
+		return sdkerrors.Wrapf(clienttypes.ErrClientNotFound, "substitute client with ID %s", substituteClientId)
+	}
+
+	if subjectClientState.GetLatestHeight().GTE(substituteClientState.GetLatestHeight()) {
+		return sdkerrors.Wrapf(clienttypes.ErrInvalidHeight, "subject client state latest height is greater or equal to substitute client state latest height (%s >= %s)", subjectClientState.GetLatestHeight(), substituteClientState.GetLatestHeight())
+	}
+
+	substituteClientStore := ibckeeper.ClientKeeper.ClientStore(ctx, substituteClientId)
+
+	if status := ibckeeper.ClientKeeper.GetClientStatus(ctx, substituteClientState, substituteClientId); status != exported.Active {
+		return sdkerrors.Wrapf(clienttypes.ErrClientNotActive, "substitute client is not Active, status is %s", status)
+	}
+
+	if err := subjectClientState.CheckSubstituteAndUpdateState(ctx, codec, subjectClientStore, substituteClientStore, substituteClientState); err != nil {
+		return err
+	}
+
+	ctx.Logger().Info("client updated after hark fork passed", "client-id", subjectClientId)
+
+	return nil
+}