diff --git a/x/tally/keeper/endblock.go b/x/tally/keeper/endblock.go
index cea05aec..19140501 100644
--- a/x/tally/keeper/endblock.go
+++ b/x/tally/keeper/endblock.go
@@ -248,7 +248,12 @@ func (k Keeper) FilterAndTally(ctx sdk.Context, req types.Request) (TallyResult,
 	if err != nil {
 		return result, k.logErrAndRet(ctx, err, types.ErrGettingMaxTallyGasLimit, req)
 	}
-	gasLimit := min(req.TallyGasLimit, maxGasLimit) - filterResult.GasUsed
+	var gasLimit uint64
+	if min(req.TallyGasLimit, maxGasLimit) > filterResult.GasUsed {
+		gasLimit = min(req.TallyGasLimit, maxGasLimit) - filterResult.GasUsed
+	} else {
+		gasLimit = 0
+	}
 
 	k.Logger(ctx).Info(
 		"executing tally VM",
diff --git a/x/tally/keeper/filter.go b/x/tally/keeper/filter.go
index 05faaff0..faee9165 100644
--- a/x/tally/keeper/filter.go
+++ b/x/tally/keeper/filter.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 
 	sdk "github.com/cosmos/cosmos-sdk/types"
+
 	"github.com/sedaprotocol/seda-chain/x/tally/types"
 )
 
@@ -27,7 +28,7 @@ type FilterResult struct {
 // index i is an outlier, consensus boolean, consensus data proxy
 // public keys, and error. It assumes that the reveals and their
 // proxy public keys are sorted.
-func (k Keeper) ApplyFilter(ctx sdk.Context, input []byte, reveals []types.RevealBody, replicationFactor int64) (FilterResult, error) {
+func (k Keeper) ApplyFilter(ctx sdk.Context, input []byte, reveals []types.RevealBody, replicationFactor uint16) (FilterResult, error) {
 	var result FilterResult
 	result.Outliers = make([]int, len(reveals))
 
diff --git a/x/tally/keeper/filter_fuzz_test.go b/x/tally/keeper/filter_fuzz_test.go
index 129a154d..7bdcc193 100644
--- a/x/tally/keeper/filter_fuzz_test.go
+++ b/x/tally/keeper/filter_fuzz_test.go
@@ -61,7 +61,7 @@ func FuzzStdDevFilter(f *testing.F) {
 		filter, err := hex.DecodeString(filterHex)
 		require.NoError(t, err)
 
-		result, err := fixture.tallyKeeper.ApplyFilter(fixture.Context(), filter, reveals, int64(len(reveals)))
+		result, err := fixture.tallyKeeper.ApplyFilter(fixture.Context(), filter, reveals, uint16(len(reveals)))
 		require.Equal(t, expOutliers, result.Outliers)
 		require.ErrorIs(t, err, nil)
 	})
diff --git a/x/tally/keeper/filter_test.go b/x/tally/keeper/filter_test.go
index 3da72f1a..79925ccb 100644
--- a/x/tally/keeper/filter_test.go
+++ b/x/tally/keeper/filter_test.go
@@ -643,7 +643,7 @@ func TestFilter(t *testing.T) {
 				sort.Strings(tt.reveals[i].ProxyPubKeys)
 			}
 
-			result, err := f.tallyKeeper.ApplyFilter(f.Context(), filter, tt.reveals, int64(len(tt.reveals)))
+			result, err := f.tallyKeeper.ApplyFilter(f.Context(), filter, tt.reveals, uint16(len(tt.reveals)))
 			require.ErrorIs(t, err, tt.wantErr)
 			if tt.consPubKeys == nil {
 				require.Nil(t, nil, result.ProxyPubKeys)
diff --git a/x/tally/types/abci_types.go b/x/tally/types/abci_types.go
index f8b6b55c..1db768e5 100644
--- a/x/tally/types/abci_types.go
+++ b/x/tally/types/abci_types.go
@@ -21,7 +21,7 @@ type Request struct {
 	GasPrice          string                `json:"gas_price"`
 	Memo              string                `json:"memo"`
 	PaybackAddress    string                `json:"payback_address"`
-	ReplicationFactor int64                 `json:"replication_factor"`
+	ReplicationFactor uint16                `json:"replication_factor"`
 	ConsensusFilter   string                `json:"consensus_filter"`
 	Commits           map[string][]byte     `json:"commits"`
 	Reveals           map[string]RevealBody `json:"reveals"`