diff --git a/module/app/app.go b/module/app/app.go
index 2c5a6f3b7..bbca29d31 100644
--- a/module/app/app.go
+++ b/module/app/app.go
@@ -82,6 +82,7 @@ import (
 	"github.com/gorilla/mux"
 	gravityparams "github.com/peggyjv/gravity-bridge/module/v3/app/params"
 	v2 "github.com/peggyjv/gravity-bridge/module/v3/app/upgrades/v2"
+	v3 "github.com/peggyjv/gravity-bridge/module/v3/app/upgrades/v3"
 	"github.com/peggyjv/gravity-bridge/module/v3/x/gravity"
 	gravityclient "github.com/peggyjv/gravity-bridge/module/v3/x/gravity/client"
 	"github.com/peggyjv/gravity-bridge/module/v3/x/gravity/keeper"
@@ -840,4 +841,12 @@ func (app *Gravity) setupUpgradeHandlers() {
 			app.bankKeeper,
 		),
 	)
+
+	app.upgradeKeeper.SetUpgradeHandler(
+		v3.UpgradeName,
+		v3.CreateUpgradeHandler(
+			app.mm,
+			app.configurator,
+		),
+	)
 }
diff --git a/module/app/upgrades/v3/README.md b/module/app/upgrades/v3/README.md
new file mode 100644
index 000000000..f8075cb59
--- /dev/null
+++ b/module/app/upgrades/v3/README.md
@@ -0,0 +1,21 @@
+# v3 upgrade
+
+This upgrade moves the gravity module from consensus version 2 to 3.
+
+## Summary of changes
+
+* Bumps cosmos-sdk to v0.45.10 and ibc-go to v3.4.0
+* Bumps minor dependency versions
+* Fix signer set signature sorting inconsistency between orchestrator and chain when powers are equal
+* Add CompletedOutgoingTx store for marking transactions as executed
+* Refactor slashing logic and include CompletedOutgoingTx in unslashed tx getter
+* Add tx confirmation pruning 
+* Add event vote record pruning
+* Fix bug that iterated the entire key store when SetDelegateKeys was called
+* Refactor address lookups used in SetDelegateKeys to not require scanning entire list of validators
+* Remove MsgRequestBatchTx and handlers
+* Add missing Amino registrations
+* Fix minor CLI bugs
+* Improve and correct terminology in function names and comments
+* Update queries
+
diff --git a/module/app/upgrades/v3/constants.go b/module/app/upgrades/v3/constants.go
new file mode 100644
index 000000000..8cffd9af2
--- /dev/null
+++ b/module/app/upgrades/v3/constants.go
@@ -0,0 +1,4 @@
+package v3
+
+// UpgradeName defines the on-chain upgrade name for the Gravity v3 upgrade
+const UpgradeName = "v3"
diff --git a/module/app/upgrades/v3/upgrades.go b/module/app/upgrades/v3/upgrades.go
new file mode 100644
index 000000000..1f3d508b1
--- /dev/null
+++ b/module/app/upgrades/v3/upgrades.go
@@ -0,0 +1,18 @@
+package v3
+
+import (
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	"github.com/cosmos/cosmos-sdk/types/module"
+	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
+)
+
+func CreateUpgradeHandler(
+	mm *module.Manager,
+	configurator module.Configurator,
+) upgradetypes.UpgradeHandler {
+	return func(ctx sdk.Context, plan upgradetypes.Plan, fromVM module.VersionMap) (module.VersionMap, error) {
+		ctx.Logger().Info("v3 upgrade: entering handler")
+
+		return mm.RunMigrations(ctx, configurator, fromVM)
+	}
+}
diff --git a/module/app/upgrades/v3/upgrades_test.go b/module/app/upgrades/v3/upgrades_test.go
new file mode 100644
index 000000000..eac3ae96a
--- /dev/null
+++ b/module/app/upgrades/v3/upgrades_test.go
@@ -0,0 +1 @@
+package v3
diff --git a/module/x/gravity/keeper/migrations.go b/module/x/gravity/keeper/migrations.go
index 38d50b0ca..c5a52cc70 100644
--- a/module/x/gravity/keeper/migrations.go
+++ b/module/x/gravity/keeper/migrations.go
@@ -3,6 +3,7 @@ package keeper
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	v1 "github.com/peggyjv/gravity-bridge/module/v3/x/gravity/migrations/v1"
+	v2 "github.com/peggyjv/gravity-bridge/module/v3/x/gravity/migrations/v2"
 )
 
 // Migrator is a struct for handling in-place store migrations.
@@ -19,3 +20,8 @@ func NewMigrator(keeper Keeper) Migrator {
 func (m Migrator) Migrate1to2(ctx sdk.Context) error {
 	return v1.MigrateStore(ctx, m.keeper.storeKey, m.keeper.cdc)
 }
+
+// Migrate2to3 migrates from consensus version 2 to 3.
+func (m Migrator) Migrate2to3(ctx sdk.Context) error {
+	return v2.MigrateParamStore(ctx, m.keeper.paramSpace)
+}
diff --git a/module/x/gravity/migrations/v2/store.go b/module/x/gravity/migrations/v2/store.go
new file mode 100644
index 000000000..7097c9824
--- /dev/null
+++ b/module/x/gravity/migrations/v2/store.go
@@ -0,0 +1,19 @@
+package v2
+
+import (
+	sdktypes "github.com/cosmos/cosmos-sdk/types"
+	paramstypes "github.com/cosmos/cosmos-sdk/x/params/types"
+	"github.com/peggyjv/gravity-bridge/module/v3/x/gravity/types"
+)
+
+func MigrateParamStore(ctx sdktypes.Context, subspace paramstypes.Subspace) error {
+	// Don't want to overwrite values if they were set in an upgrade handler
+	if !subspace.Has(ctx, types.ParamStoreConfirmedOutgoingTxWindow) {
+		subspace.Set(ctx, types.ParamStoreConfirmedOutgoingTxWindow, types.DefaultParams().ConfirmedOutgoingTxWindow)
+	}
+	if !subspace.Has(ctx, types.ParamStoreEthereumEventVoteWindow) {
+		subspace.Set(ctx, types.ParamStoreEthereumEventVoteWindow, types.DefaultParams().EthereumEventVoteWindow)
+	}
+
+	return nil
+}
diff --git a/module/x/gravity/migrations/v2/store_test.go b/module/x/gravity/migrations/v2/store_test.go
new file mode 100644
index 000000000..76053c07b
--- /dev/null
+++ b/module/x/gravity/migrations/v2/store_test.go
@@ -0,0 +1,37 @@
+package v2_test
+
+import (
+	"testing"
+
+	"github.com/cosmos/cosmos-sdk/codec"
+	storetypes "github.com/cosmos/cosmos-sdk/store/types"
+	"github.com/cosmos/cosmos-sdk/testutil"
+	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
+	v2 "github.com/peggyjv/gravity-bridge/module/v3/x/gravity/migrations/v2"
+	"github.com/peggyjv/gravity-bridge/module/v3/x/gravity/types"
+	"github.com/stretchr/testify/require"
+)
+
+const (
+	ModuleName = "gravity"
+)
+
+func TestStoreMigration(t *testing.T) {
+	gravityKey := storetypes.NewKVStoreKey(ModuleName)
+	tGravityKey := storetypes.NewTransientStoreKey("transient_test")
+	ctx := testutil.DefaultContext(gravityKey, tGravityKey)
+	aminoCodec := codec.NewLegacyAmino()
+	paramstore := paramtypes.NewSubspace(nil, aminoCodec, gravityKey, tGravityKey, ModuleName)
+
+	// Check no params
+	require.False(t, paramstore.Has(ctx, types.ParamStoreConfirmedOutgoingTxWindow))
+	require.False(t, paramstore.Has(ctx, types.ParamStoreEventVoteWindow))
+
+	// Run migrations.
+	err := v2.MigrateParamStore(ctx, paramstore)
+	require.NoError(t, err)
+
+	// Make sure the new params are set.
+	require.True(t, paramstore.Has(ctx, types.ParamStoreConfirmedOutgoingTxWindow))
+	require.True(t, paramstore.Has(ctx, types.ParamStoreEventVoteWindow))
+}
diff --git a/module/x/gravity/module.go b/module/x/gravity/module.go
index 9c5736e07..96f549f06 100644
--- a/module/x/gravity/module.go
+++ b/module/x/gravity/module.go
@@ -104,7 +104,7 @@ func (AppModule) Name() string {
 
 // ConsensusVersion implements AppModule/ConsensusVersion.
 func (AppModule) ConsensusVersion() uint64 {
-	return 2
+	return 3
 }
 
 // RegisterInvariants implements app module
@@ -137,6 +137,10 @@ func (am AppModule) RegisterServices(cfg module.Configurator) {
 	if err := cfg.RegisterMigration(types.ModuleName, 1, m.Migrate1to2); err != nil {
 		panic(fmt.Sprintf("failed to migrate x/gravity from version 1 to 2: %v", err))
 	}
+
+	if err := cfg.RegisterMigration(types.ModuleName, 2, m.Migrate2to3); err != nil {
+		panic(fmt.Sprintf("failed to migrate x/gravity from version 2 to 3: %v", err))
+	}
 }
 
 // InitGenesis initializes the genesis state for this module and implements app module.
diff --git a/module/x/gravity/types/genesis.go b/module/x/gravity/types/genesis.go
index 162ae2310..f8de6d063 100644
--- a/module/x/gravity/types/genesis.go
+++ b/module/x/gravity/types/genesis.go
@@ -65,8 +65,8 @@ var (
 	//  ParamStoreUnbondSlashingSignerSetTxsWindow stores unbond slashing valset window
 	ParamStoreUnbondSlashingSignerSetTxsWindow = []byte("UnbondSlashingSignerSetTxsWindow")
 
-	// ParamStoreEventVoteWindow stores the event vote window
-	ParamStoreEventVoteWindow = []byte("EventVoteWindow")
+	// ParamStoreEthereumEventVoteWindow stores the event vote window
+	ParamStoreEthereumEventVoteWindow = []byte("EthereumEventVoteWindow")
 
 	//  ParamStoreUnbondSlashingSignerSetTxsWindow stores unbond slashing valset window
 	ParamStoreConfirmedOutgoingTxWindow = []byte("ConfirmedOutgoingTxWindow")
@@ -228,7 +228,7 @@ func (p *Params) ParamSetPairs() paramtypes.ParamSetPairs {
 		paramtypes.NewParamSetPair(ParamsStoreSlashFractionEthereumSignature, &p.SlashFractionEthereumSignature, validateSlashFractionEthereumSignature),
 		paramtypes.NewParamSetPair(ParamsStoreSlashFractionConflictingEthereumSignature, &p.SlashFractionConflictingEthereumSignature, validateSlashFractionConflictingEthereumSignature),
 		paramtypes.NewParamSetPair(ParamStoreUnbondSlashingSignerSetTxsWindow, &p.UnbondSlashingSignerSetTxsWindow, validateUnbondSlashingSignerSetTxsWindow),
-		paramtypes.NewParamSetPair(ParamStoreEventVoteWindow, &p.EthereumEventVoteWindow, validateEthereumEventVoteWindow),
+		paramtypes.NewParamSetPair(ParamStoreEthereumEventVoteWindow, &p.EthereumEventVoteWindow, validateEthereumEventVoteWindow),
 		paramtypes.NewParamSetPair(ParamStoreConfirmedOutgoingTxWindow, &p.ConfirmedOutgoingTxWindow, validateConfirmedOutgoingTxWindow),
 	}
 }