diff --git a/x/evidence/keeper/infraction.go b/x/evidence/keeper/infraction.go
index e9655ccbd8b8..a98fe5995574 100644
--- a/x/evidence/keeper/infraction.go
+++ b/x/evidence/keeper/infraction.go
@@ -29,7 +29,7 @@ func (k Keeper) handleEquivocationEvidence(ctx context.Context, evidence *types.
 	logger := k.Logger(ctx)
 	consAddr := evidence.GetConsensusAddress()
 
-	validator, err := k.stakingKeeper.ValidatorByConsAddr(ctx, consAddr)
+	validator, err := k.validatorStore.ValidatorByConsAddr(ctx, consAddr)
 	if err != nil {
 		return err
 	}
diff --git a/x/evidence/keeper/keeper.go b/x/evidence/keeper/keeper.go
index 399ca5db0d2e..b98cb42a90d9 100644
--- a/x/evidence/keeper/keeper.go
+++ b/x/evidence/keeper/keeper.go
@@ -15,6 +15,7 @@ import (
 	"cosmossdk.io/x/evidence/exported"
 	"cosmossdk.io/x/evidence/types"
 
+	"github.com/cosmos/cosmos-sdk/baseapp"
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 )
@@ -26,7 +27,7 @@ type Keeper struct {
 	cdc            codec.BinaryCodec
 	storeService   store.KVStoreService
 	router         types.Router
-	stakingKeeper  types.StakingKeeper
+	validatorStore baseapp.ValidatorStore
 	slashingKeeper types.SlashingKeeper
 	addressCodec   address.Codec
 
@@ -38,14 +39,14 @@ type Keeper struct {
 
 // NewKeeper creates a new Keeper object.
 func NewKeeper(
-	cdc codec.BinaryCodec, storeService store.KVStoreService, stakingKeeper types.StakingKeeper,
+	cdc codec.BinaryCodec, storeService store.KVStoreService, validatorStore baseapp.ValidatorStore,
 	slashingKeeper types.SlashingKeeper, ac address.Codec, ci comet.BlockInfoService,
 ) *Keeper {
 	sb := collections.NewSchemaBuilder(storeService)
 	k := &Keeper{
 		cdc:            cdc,
 		storeService:   storeService,
-		stakingKeeper:  stakingKeeper,
+		validatorStore: validatorStore,
 		slashingKeeper: slashingKeeper,
 		addressCodec:   ac,
 		cometInfo:      ci,
diff --git a/x/evidence/types/expected_keepers.go b/x/evidence/types/expected_keepers.go
index e29b2c44b2cf..a59cb56a6f70 100644
--- a/x/evidence/types/expected_keepers.go
+++ b/x/evidence/types/expected_keepers.go
@@ -17,7 +17,6 @@ type (
 	// evidence module.
 	StakingKeeper interface {
 		ValidatorByConsAddr(context.Context, sdk.ConsAddress) (stakingtypes.ValidatorI, error)
-		GetParams(ctx context.Context) (params stakingtypes.Params, err error)
 	}
 
 	// SlashingKeeper defines the slashing module interface contract needed by the
diff --git a/x/gov/keeper/vote.go b/x/gov/keeper/vote.go
index 6f19007c043d..0bc99653d509 100644
--- a/x/gov/keeper/vote.go
+++ b/x/gov/keeper/vote.go
@@ -48,6 +48,7 @@ func (keeper Keeper) AddVote(ctx context.Context, proposalID uint64, voterAddr s
 	sdkCtx.EventManager().EmitEvent(
 		sdk.NewEvent(
 			types.EventTypeProposalVote,
+			sdk.NewAttribute(types.AttributeKeyVoter, voterAddr.String()),
 			sdk.NewAttribute(types.AttributeKeyOption, options.String()),
 			sdk.NewAttribute(types.AttributeKeyProposalID, fmt.Sprintf("%d", proposalID)),
 		),
diff --git a/x/gov/types/events.go b/x/gov/types/events.go
index c7f895234f0b..96ccc5577e33 100644
--- a/x/gov/types/events.go
+++ b/x/gov/types/events.go
@@ -10,6 +10,7 @@ const (
 	EventTypeCancelProposal   = "cancel_proposal"
 
 	AttributeKeyProposalResult              = "proposal_result"
+	AttributeKeyVoter                       = "voter"
 	AttributeKeyOption                      = "option"
 	AttributeKeyProposalID                  = "proposal_id"
 	AttributeKeyProposalMessages            = "proposal_messages" // Msg type_urls in the proposal