diff --git a/x/staking/keeper/keeper.go b/x/staking/keeper/keeper.go
index 876c9ae97df3..13884f06622c 100644
--- a/x/staking/keeper/keeper.go
+++ b/x/staking/keeper/keeper.go
@@ -70,17 +70,12 @@ type Keeper struct {
 	LastTotalPower collections.Item[math.Int]
 	// DelegationsByValidator key: valAddr+delAddr | value: none used (index key for delegations by validator index)
 	DelegationsByValidator collections.Map[collections.Pair[sdk.ValAddress, sdk.AccAddress], []byte]
-	UnbondingID            collections.Sequence
 	// ValidatorByConsensusAddress key: consAddr | value: valAddr
 	ValidatorByConsensusAddress collections.Map[sdk.ConsAddress, sdk.ValAddress]
-	// UnbondingType key: unbondingID | value: index of UnbondingType
-	UnbondingType collections.Map[uint64, uint64]
 	// Redelegations key: AccAddr+SrcValAddr+DstValAddr | value: Redelegation
 	Redelegations collections.Map[collections.Triple[[]byte, []byte, []byte], types.Redelegation]
 	// Delegations key: AccAddr+valAddr | value: Delegation
 	Delegations collections.Map[collections.Pair[sdk.AccAddress, sdk.ValAddress], types.Delegation]
-	// UnbondingIndex key:UnbondingID | value: ubdKey (ubdKey = [UnbondingDelegationKey(Prefix)+len(delAddr)+delAddr+len(valAddr)+valAddr])
-	UnbondingIndex collections.Map[uint64, []byte]
 	// UnbondingQueue key: Timestamp | value: DVPairs [delAddr+valAddr]
 	UnbondingQueue collections.Map[time.Time, types.DVPairs]
 	// Validators key: valAddr | value: Validator
@@ -178,14 +173,12 @@ func NewKeeper(
 			),
 			collections.BytesValue,
 		),
-		UnbondingID: collections.NewSequence(sb, types.UnbondingIDKey, "unbonding_id"),
 		ValidatorByConsensusAddress: collections.NewMap(
 			sb, types.ValidatorsByConsAddrKey,
 			"validator_by_cons_addr",
 			sdk.LengthPrefixedAddressKey(sdk.ConsAddressKey).WithName("cons_address"), //nolint: staticcheck // sdk.LengthPrefixedAddressKey is needed to retain state compatibility
 			collcodec.KeyToValueCodec(sdk.ValAddressKey),
 		),
-		UnbondingType: collections.NewMap(sb, types.UnbondingTypeKey, "unbonding_type", collections.Uint64Key.WithName("unbonding_id"), collections.Uint64Value),
 		// key format is: 52 | lengthPrefixedBytes(AccAddr) | lengthPrefixedBytes(SrcValAddr) | lengthPrefixedBytes(DstValAddr)
 		Redelegations: collections.NewMap(
 			sb, types.RedelegationKey,
@@ -200,7 +193,6 @@ func NewKeeper(
 			),
 			codec.CollValue[types.Redelegation](cdc),
 		),
-		UnbondingIndex: collections.NewMap(sb, types.UnbondingIndexKey, "unbonding_index", collections.Uint64Key.WithName("index"), collections.BytesValue.WithName("ubd_key")),
 		UnbondingDelegationByValIndex: collections.NewMap(
 			sb, types.UnbondingDelegationByValIndexKey,
 			"unbonding_delegation_by_val_index",
diff --git a/x/staking/keeper/validator.go b/x/staking/keeper/validator.go
index ef758090d359..f3bcfd9acd74 100644
--- a/x/staking/keeper/validator.go
+++ b/x/staking/keeper/validator.go
@@ -545,9 +545,16 @@ func (k Keeper) unbondMatureValidators(
 			return errors.New("unexpected validator in unbonding queue; status was not unbonding")
 		}
 
-		val = k.UnbondingToUnbonded(ctx, val)
+		val, err = k.UnbondingToUnbonded(ctx, val)
+		if err != nil {
+			return err
+		}
 		if val.GetDelegatorShares().IsZero() {
-			k.RemoveValidator(ctx, val.GetOperator())
+			addr, err := k.validatorAddressCodec.StringToBytes(val.OperatorAddress)
+			if err != nil {
+				return err
+			}
+			k.RemoveValidator(ctx, addr)
 		}
 	}
 	return nil
diff --git a/x/staking/migrations/v6/keys.go b/x/staking/migrations/v6/keys.go
index 252d7ce50396..5c3b1a913350 100644
--- a/x/staking/migrations/v6/keys.go
+++ b/x/staking/migrations/v6/keys.go
@@ -3,6 +3,9 @@ package v6
 import "cosmossdk.io/collections"
 
 var (
+	UnbondingTypeKey    = collections.NewPrefix(57) // prefix for an index containing the type of unbonding operations
+	UnbondingIDKey      = collections.NewPrefix(55) // key for the counter for the incrementing id for UnbondingOperations
+	UnbondingIndexKey   = collections.NewPrefix(56) // prefix for an index for looking up unbonding operations by their IDs
 	ValidatorUpdatesKey = collections.NewPrefix(97)
 	HistoricalInfoKey   = collections.NewPrefix(80) // prefix for the historical info
 )
diff --git a/x/staking/migrations/v6/store.go b/x/staking/migrations/v6/store.go
index 93de43ec51fa..98b4cb446faa 100644
--- a/x/staking/migrations/v6/store.go
+++ b/x/staking/migrations/v6/store.go
@@ -13,5 +13,8 @@ import (
 func MigrateStore(ctx context.Context, store storetypes.KVStore, cdc codec.BinaryCodec) error {
 	store.Delete(ValidatorUpdatesKey)
 	store.Delete(HistoricalInfoKey)
+	store.Delete(UnbondingIDKey)
+	store.Delete(UnbondingIndexKey)
+	store.Delete(UnbondingTypeKey)
 	return nil
 }
diff --git a/x/staking/types/keys.go b/x/staking/types/keys.go
index 03335a9a8372..7228716a7700 100644
--- a/x/staking/types/keys.go
+++ b/x/staking/types/keys.go
@@ -49,10 +49,6 @@ var (
 	RedelegationByValSrcIndexKey = collections.NewPrefix(53) // prefix for each key for a redelegation, by source validator operator
 	RedelegationByValDstIndexKey = collections.NewPrefix(54) // prefix for each key for a redelegation, by destination validator operator
 
-	UnbondingIDKey    = collections.NewPrefix(55) // key for the counter for the incrementing id for UnbondingOperations
-	UnbondingIndexKey = collections.NewPrefix(56) // prefix for an index for looking up unbonding operations by their IDs
-	UnbondingTypeKey  = collections.NewPrefix(57) // prefix for an index containing the type of unbonding operations
-
 	UnbondingQueueKey    = collections.NewPrefix(65) // prefix for the timestamps in unbonding queue
 	RedelegationQueueKey = collections.NewPrefix(66) // prefix for the timestamps in redelegations queue
 	ValidatorQueueKey    = collections.NewPrefix(67) // prefix for the timestamps in validator queue