diff --git a/.changelog/unreleased/state-breaking/2913-gov-spam.md b/.changelog/unreleased/state-breaking/2913-gov-spam.md
new file mode 100644
index 00000000000..1f80acb0ae1
--- /dev/null
+++ b/.changelog/unreleased/state-breaking/2913-gov-spam.md
@@ -0,0 +1,3 @@
+- Remove `GovPreventSpamDecorator` and initialize the `MinInitialDepositRatio` gov
+  param to `10%`. 
+  ([\#2913](https://github.com/cosmos/gaia/pull/2913))
\ No newline at end of file
diff --git a/ante/ante.go b/ante/ante.go
index 4970c135919..433e434aed9 100644
--- a/ante/ante.go
+++ b/ante/ante.go
@@ -9,7 +9,6 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth/ante"
-	govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
 	paramtypes "github.com/cosmos/cosmos-sdk/x/params/types"
 	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
 
@@ -22,7 +21,6 @@ import (
 type HandlerOptions struct {
 	ante.HandlerOptions
 	Codec             codec.BinaryCodec
-	GovKeeper         *govkeeper.Keeper
 	IBCkeeper         *ibckeeper.Keeper
 	GlobalFeeSubspace paramtypes.Subspace
 	StakingKeeper     *stakingkeeper.Keeper
@@ -50,9 +48,6 @@ func NewAnteHandler(opts HandlerOptions) (sdk.AnteHandler, error) {
 	if opts.StakingKeeper == nil {
 		return nil, errorsmod.Wrap(gaiaerrors.ErrNotFound, "staking param store is required for AnteHandler")
 	}
-	if opts.GovKeeper == nil {
-		return nil, errorsmod.Wrap(gaiaerrors.ErrLogic, "gov keeper is required for AnteHandler")
-	}
 
 	sigGasConsumer := opts.SigGasConsumer
 	if sigGasConsumer == nil {
@@ -66,7 +61,6 @@ func NewAnteHandler(opts HandlerOptions) (sdk.AnteHandler, error) {
 		ante.NewTxTimeoutHeightDecorator(),
 		ante.NewValidateMemoDecorator(opts.AccountKeeper),
 		ante.NewConsumeGasForTxSizeDecorator(opts.AccountKeeper),
-		NewGovPreventSpamDecorator(opts.Codec, opts.GovKeeper),
 		gaiafeeante.NewFeeDecorator(opts.GlobalFeeSubspace, opts.StakingKeeper),
 		ante.NewDeductFeeDecorator(opts.AccountKeeper, opts.BankKeeper, opts.FeegrantKeeper, opts.TxFeeChecker),
 		ante.NewSetPubKeyDecorator(opts.AccountKeeper), // SetPubKeyDecorator must be called before all signature verification decorators
diff --git a/ante/gov_ante.go b/ante/gov_ante.go
deleted file mode 100644
index ba91100fc7e..00000000000
--- a/ante/gov_ante.go
+++ /dev/null
@@ -1,98 +0,0 @@
-package ante
-
-import (
-	errorsmod "cosmossdk.io/errors"
-
-	"github.com/cosmos/cosmos-sdk/codec"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	"github.com/cosmos/cosmos-sdk/x/authz"
-	govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
-	govv1beta1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1beta1"
-
-	gaiaerrors "github.com/cosmos/gaia/v15/types/errors"
-)
-
-// initial deposit must be greater than or equal to 10% of the minimum deposit
-var minInitialDepositFraction = sdk.NewDecWithPrec(10, 2)
-
-type GovPreventSpamDecorator struct {
-	govKeeper *govkeeper.Keeper
-	cdc       codec.BinaryCodec
-}
-
-func NewGovPreventSpamDecorator(cdc codec.BinaryCodec, govKeeper *govkeeper.Keeper) GovPreventSpamDecorator {
-	return GovPreventSpamDecorator{
-		govKeeper: govKeeper,
-		cdc:       cdc,
-	}
-}
-
-func (g GovPreventSpamDecorator) AnteHandle(
-	ctx sdk.Context, tx sdk.Tx,
-	simulate bool, next sdk.AnteHandler,
-) (newCtx sdk.Context, err error) {
-	// run checks only on CheckTx or simulate
-	if !ctx.IsCheckTx() || simulate {
-		return next(ctx, tx, simulate)
-	}
-
-	msgs := tx.GetMsgs()
-	if err = g.ValidateGovMsgs(ctx, msgs); err != nil {
-		return ctx, err
-	}
-
-	return next(ctx, tx, simulate)
-}
-
-// validateGovMsgs checks if the InitialDeposit amounts are greater than the minimum initial deposit amount
-func (g GovPreventSpamDecorator) ValidateGovMsgs(ctx sdk.Context, msgs []sdk.Msg) error {
-	validMsg := func(m sdk.Msg) error {
-		if msg, ok := m.(*govv1beta1.MsgSubmitProposal); ok {
-			// prevent messages with insufficient initial deposit amount
-			params := g.govKeeper.GetParams(ctx)
-			minInitialDeposit := g.calcMinInitialDeposit(params.MinDeposit)
-			if !msg.InitialDeposit.IsAllGTE(minInitialDeposit) {
-				return errorsmod.Wrapf(gaiaerrors.ErrInsufficientFunds, "insufficient initial deposit amount - required: %v", minInitialDeposit)
-			}
-		}
-
-		return nil
-	}
-
-	validAuthz := func(execMsg *authz.MsgExec) error {
-		for _, v := range execMsg.Msgs {
-			var innerMsg sdk.Msg
-			if err := g.cdc.UnpackAny(v, &innerMsg); err != nil {
-				return errorsmod.Wrap(gaiaerrors.ErrUnauthorized, "cannot unmarshal authz exec msgs")
-			}
-			if err := validMsg(innerMsg); err != nil {
-				return err
-			}
-		}
-
-		return nil
-	}
-
-	for _, m := range msgs {
-		if msg, ok := m.(*authz.MsgExec); ok {
-			if err := validAuthz(msg); err != nil {
-				return err
-			}
-			continue
-		}
-
-		// validate normal msgs
-		if err := validMsg(m); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func (g GovPreventSpamDecorator) calcMinInitialDeposit(minDeposit sdk.Coins) (minInitialDeposit sdk.Coins) {
-	for _, coin := range minDeposit {
-		minInitialCoins := minInitialDepositFraction.MulInt(coin.Amount).RoundInt()
-		minInitialDeposit = minInitialDeposit.Add(sdk.NewCoin(coin.Denom, minInitialCoins))
-	}
-	return
-}
diff --git a/ante/gov_ante_test.go b/ante/gov_ante_test.go
deleted file mode 100644
index 6bd386d2a9f..00000000000
--- a/ante/gov_ante_test.go
+++ /dev/null
@@ -1,101 +0,0 @@
-package ante_test
-
-import (
-	"fmt"
-	"testing"
-
-	"github.com/stretchr/testify/suite"
-
-	tmrand "github.com/cometbft/cometbft/libs/rand"
-	tmproto "github.com/cometbft/cometbft/proto/tendermint/types"
-
-	"github.com/cosmos/cosmos-sdk/client"
-	"github.com/cosmos/cosmos-sdk/testutil/testdata"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	govv1beta1 "github.com/cosmos/cosmos-sdk/x/gov/types/v1beta1"
-
-	"github.com/cosmos/gaia/v15/ante"
-	gaiaapp "github.com/cosmos/gaia/v15/app"
-	gaiahelpers "github.com/cosmos/gaia/v15/app/helpers"
-)
-
-var (
-	insufficientCoins           = sdk.NewCoins(sdk.NewInt64Coin(sdk.DefaultBondDenom, 100))
-	insufficientMultiDenomCoins = sdk.NewCoins(
-		sdk.NewInt64Coin(sdk.DefaultBondDenom, 100),
-		sdk.NewInt64Coin("ibc/example", 100))
-	minCoins                   = sdk.NewCoins(sdk.NewInt64Coin(sdk.DefaultBondDenom, 1000000))
-	moreThanMinCoins           = sdk.NewCoins(sdk.NewInt64Coin(sdk.DefaultBondDenom, 2500000))
-	moreThanMinMultiDenomCoins = sdk.NewCoins(
-		sdk.NewInt64Coin(sdk.DefaultBondDenom, 1000000),
-		sdk.NewInt64Coin("ibc/example", 100))
-	testAddr = sdk.AccAddress("test1")
-)
-
-type GovAnteHandlerTestSuite struct {
-	suite.Suite
-
-	app       *gaiaapp.GaiaApp
-	ctx       sdk.Context
-	clientCtx client.Context
-}
-
-func (s *GovAnteHandlerTestSuite) SetupTest() {
-	app := gaiahelpers.Setup(s.T())
-	ctx := app.BaseApp.NewContext(false, tmproto.Header{
-		ChainID: fmt.Sprintf("test-chain-%s", tmrand.Str(4)),
-		Height:  1,
-	})
-
-	legacyAmino := app.LegacyAmino()
-	legacyAmino.Amino.RegisterConcrete(&testdata.TestMsg{}, "testdata.TestMsg", nil)
-	testdata.RegisterInterfaces(app.InterfaceRegistry())
-
-	s.app = app
-	s.ctx = ctx
-	s.clientCtx = client.Context{}.WithTxConfig(app.GetTxConfig())
-}
-
-func TestGovSpamPreventionSuite(t *testing.T) {
-	suite.Run(t, new(GovAnteHandlerTestSuite))
-}
-
-func (s *GovAnteHandlerTestSuite) TestGlobalFeeMinimumGasFeeAnteHandler() {
-	// setup test
-	s.SetupTest()
-	tests := []struct {
-		title, description string
-		proposalType       string
-		proposerAddr       sdk.AccAddress
-		initialDeposit     sdk.Coins
-		expectPass         bool
-	}{
-		{"Passing proposal 1", "the purpose of this proposal is to pass", govv1beta1.ProposalTypeText, testAddr, minCoins, true},
-		{"Passing proposal 2", "the purpose of this proposal is to pass with more coins than minimum", govv1beta1.ProposalTypeText, testAddr, moreThanMinCoins, true},
-		{"Passing proposal 3", "the purpose of this proposal is to pass with multi denom coins", govv1beta1.ProposalTypeText, testAddr, moreThanMinMultiDenomCoins, true},
-		{"Failing proposal 1", "the purpose of this proposal is to fail", govv1beta1.ProposalTypeText, testAddr, insufficientCoins, false},
-		{"Failing proposal 2", "the purpose of this proposal is to fail with multi denom coins", govv1beta1.ProposalTypeText, testAddr, insufficientMultiDenomCoins, false},
-	}
-
-	decorator := ante.NewGovPreventSpamDecorator(s.app.AppCodec(), s.app.GovKeeper)
-
-	for _, tc := range tests {
-		content, _ := govv1beta1.ContentFromProposalType(tc.title, tc.description, tc.proposalType)
-		s.Require().NotNil(content)
-
-		msg, err := govv1beta1.NewMsgSubmitProposal(
-			content,
-			tc.initialDeposit,
-			tc.proposerAddr,
-		)
-
-		s.Require().NoError(err)
-
-		err = decorator.ValidateGovMsgs(s.ctx, []sdk.Msg{msg})
-		if tc.expectPass {
-			s.Require().NoError(err, "expected %v to pass", tc.title)
-		} else {
-			s.Require().Error(err, "expected %v to fail", tc.title)
-		}
-	}
-}
diff --git a/app/app.go b/app/app.go
index 744e9987a5f..9165aaeb977 100644
--- a/app/app.go
+++ b/app/app.go
@@ -225,7 +225,6 @@ func NewGaiaApp(
 			},
 			Codec:             appCodec,
 			IBCkeeper:         app.IBCKeeper,
-			GovKeeper:         app.GovKeeper,
 			GlobalFeeSubspace: app.GetSubspace(globalfee.ModuleName),
 			StakingKeeper:     app.StakingKeeper,
 			// If TxFeeChecker is nil the default ante TxFeeChecker is used
diff --git a/app/upgrades/v15/upgrades.go b/app/upgrades/v15/upgrades.go
index 2b07077ed50..fee2eb9322e 100644
--- a/app/upgrades/v15/upgrades.go
+++ b/app/upgrades/v15/upgrades.go
@@ -15,6 +15,7 @@ import (
 	banktypes "github.com/cosmos/cosmos-sdk/x/bank/types"
 	distributionkeeper "github.com/cosmos/cosmos-sdk/x/distribution/keeper"
 	distributiontypes "github.com/cosmos/cosmos-sdk/x/distribution/types"
+	govkeeper "github.com/cosmos/cosmos-sdk/x/gov/keeper"
 	slashingkeeper "github.com/cosmos/cosmos-sdk/x/slashing/keeper"
 	slashingtypes "github.com/cosmos/cosmos-sdk/x/slashing/types"
 	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
@@ -57,6 +58,9 @@ func CreateUpgradeHandler(
 			keepers); err != nil {
 			return nil, fmt.Errorf("failed migrating vesting funds: %s", err)
 		}
+		if err := SetMinInitialDepositRatio(ctx, *keepers.GovKeeper); err != nil {
+			return nil, fmt.Errorf("failed initializing the min initial deposit ratio: %s", err)
+		}
 
 		ctx.Logger().Info("Upgrade v15 complete")
 		return vm, err
@@ -323,3 +327,21 @@ func setBalance(
 
 	return nil
 }
+
+// SetMinInitialDepositRatio sets the MinInitialDepositRatio param of the gov
+// module to 10% - this is the proportion of the deposit value that must be paid
+// at proposal submission.
+func SetMinInitialDepositRatio(ctx sdk.Context, gk govkeeper.Keeper) error {
+	ctx.Logger().Info("Initializing MinInitialDepositRatio...")
+
+	params := gk.GetParams(ctx)
+	params.MinInitialDepositRatio = sdk.NewDecWithPrec(1, 1).String() // 0.1 (10%)
+	err := gk.SetParams(ctx, params)
+	if err != nil {
+		return err
+	}
+
+	ctx.Logger().Info("Finished initializing MinInitialDepositRatio...")
+
+	return nil
+}
diff --git a/app/upgrades/v15/upgrades_test.go b/app/upgrades/v15/upgrades_test.go
index 5d2c6723b1c..a6ce2e757b9 100644
--- a/app/upgrades/v15/upgrades_test.go
+++ b/app/upgrades/v15/upgrades_test.go
@@ -270,3 +270,16 @@ func TestClawbackVestingFunds(t *testing.T) {
 	)
 	require.NoError(t, err)
 }
+
+func TestSetMinInitialDepositRatio(t *testing.T) {
+	gaiaApp := helpers.Setup(t)
+	ctx := gaiaApp.NewUncachedContext(true, tmproto.Header{})
+
+	err := v15.SetMinInitialDepositRatio(ctx, *gaiaApp.GovKeeper)
+	require.NoError(t, err)
+
+	minInitialDepositRatioStr := gaiaApp.GovKeeper.GetParams(ctx).MinInitialDepositRatio
+	minInitialDepositRatio, err := math.LegacyNewDecFromStr(minInitialDepositRatioStr)
+	require.NoError(t, err)
+	require.True(t, minInitialDepositRatio.Equal(sdk.NewDecWithPrec(1, 1)))
+}