diff --git a/internal/db/model/delegation.go b/internal/db/model/delegation.go
index c22ac1d..a9fc85e 100644
--- a/internal/db/model/delegation.go
+++ b/internal/db/model/delegation.go
@@ -2,8 +2,6 @@ package model
 
 import (
 	"fmt"
-	"strconv"
-
 	"github.com/babylonlabs-io/babylon-staking-indexer/internal/types"
 	"github.com/babylonlabs-io/babylon-staking-indexer/internal/utils"
 	bbntypes "github.com/babylonlabs-io/babylon/x/btcstaking/types"
@@ -59,22 +57,22 @@ func FromEventBTCDelegationCreated(
 	bbnBlockHeight,
 	bbnBlockTime int64,
 ) (*BTCDelegationDetails, error) {
-	stakingOutputIdx, err := strconv.ParseUint(event.StakingOutputIndex, 10, 32)
+	stakingOutputIdx, err := utils.ParseUint32(event.StakingOutputIndex)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse staking output index: %w", err)
 	}
 
-	paramsVersion, err := strconv.ParseUint(event.ParamsVersion, 10, 32)
+	paramsVersion, err := utils.ParseUint32(event.ParamsVersion)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse params version: %w", err)
 	}
 
-	stakingTime, err := strconv.ParseUint(event.StakingTime, 10, 32)
+	stakingTime, err := utils.ParseUint32(event.StakingTime)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse staking time: %w", err)
 	}
 
-	unbondingTime, err := strconv.ParseUint(event.UnbondingTime, 10, 32)
+	unbondingTime, err := utils.ParseUint32(event.UnbondingTime)
 	if err != nil {
 		return nil, fmt.Errorf("failed to parse unbonding time: %w", err)
 	}
@@ -89,17 +87,17 @@ func FromEventBTCDelegationCreated(
 	return &BTCDelegationDetails{
 		StakingTxHashHex:            stakingTx.TxHash().String(),
 		StakingTxHex:                event.StakingTxHex,
-		StakingTime:                 uint32(stakingTime),
+		StakingTime:                 stakingTime,
 		StakingAmount:               uint64(stakingValue),
-		StakingOutputIdx:            uint32(stakingOutputIdx),
+		StakingOutputIdx:            stakingOutputIdx,
 		StakerBtcPkHex:              event.StakerBtcPkHex,
 		FinalityProviderBtcPksHex:   event.FinalityProviderBtcPksHex,
-		ParamsVersion:               uint32(paramsVersion),
-		UnbondingTime:               uint32(unbondingTime),
+		ParamsVersion:               paramsVersion,
+		UnbondingTime:               unbondingTime,
 		UnbondingTx:                 event.UnbondingTx,
 		State:                       types.StatePending, // initial state will always be PENDING
-		StartHeight:                 uint32(0),          // it should be set when the inclusion proof is received
-		EndHeight:                   uint32(0),          // it should be set when the inclusion proof is received
+		StartHeight:                 0,                  // it should be set when the inclusion proof is received
+		EndHeight:                   0,                  // it should be set when the inclusion proof is received
 		CovenantUnbondingSignatures: []CovenantSignature{},
 		BTCDelegationCreatedBlock: BTCDelegationCreatedBbnBlock{
 			Height:    bbnBlockHeight,
@@ -117,11 +115,11 @@ func FromEventBTCDelegationCreated(
 func FromEventBTCDelegationInclusionProofReceived(
 	event *bbntypes.EventBTCDelegationInclusionProofReceived,
 ) *BTCDelegationDetails {
-	startHeight, _ := strconv.ParseUint(event.StartHeight, 10, 32)
-	endHeight, _ := strconv.ParseUint(event.EndHeight, 10, 32)
+	startHeight, _ := utils.ParseUint32(event.StartHeight)
+	endHeight, _ := utils.ParseUint32(event.EndHeight)
 	return &BTCDelegationDetails{
-		StartHeight: uint32(startHeight),
-		EndHeight:   uint32(endHeight),
+		StartHeight: startHeight,
+		EndHeight:   endHeight,
 		State:       types.DelegationState(event.NewState),
 	}
 }
diff --git a/internal/services/delegation.go b/internal/services/delegation.go
index 063b2dd..03dfa72 100644
--- a/internal/services/delegation.go
+++ b/internal/services/delegation.go
@@ -3,8 +3,6 @@ package services
 import (
 	"context"
 	"fmt"
-	"strconv"
-
 	"github.com/babylonlabs-io/babylon-staking-indexer/internal/db"
 	"github.com/babylonlabs-io/babylon-staking-indexer/internal/db/model"
 	"github.com/babylonlabs-io/babylon-staking-indexer/internal/types"
@@ -12,6 +10,7 @@ import (
 	ftypes "github.com/babylonlabs-io/babylon/x/finality/types"
 	abcitypes "github.com/cometbft/cometbft/abci/types"
 	"github.com/rs/zerolog/log"
+	"github.com/babylonlabs-io/babylon-staking-indexer/internal/utils"
 )
 
 const (
@@ -196,7 +195,7 @@ func (s *Service) processBTCDelegationInclusionProofReceivedEvent(
 	}
 	newState := types.DelegationState(inclusionProofEvent.NewState)
 	if newState == types.StateActive {
-		stakingStartHeight, _ := strconv.ParseUint(inclusionProofEvent.StartHeight, 10, 32)
+		stakingStartHeight, _ := utils.ParseUint32(inclusionProofEvent.StartHeight)
 
 		log.Debug().
 			Str("staking_tx", inclusionProofEvent.StakingTxHash).
@@ -216,7 +215,7 @@ func (s *Service) processBTCDelegationInclusionProofReceivedEvent(
 			delegation.StakingTxHashHex,
 			delegation.StakingTxHex,
 			delegation.StakingOutputIdx,
-			uint32(stakingStartHeight),
+			stakingStartHeight,
 		); err != nil {
 			return err
 		}
@@ -269,7 +268,7 @@ func (s *Service) processBTCDelegationUnbondedEarlyEvent(
 		return err
 	}
 
-	unbondingStartHeight, parseErr := strconv.ParseUint(unbondedEarlyEvent.StartHeight, 10, 32)
+	unbondingStartHeight, parseErr := utils.ParseUint32(unbondedEarlyEvent.StartHeight)
 	if parseErr != nil {
 		return fmt.Errorf("failed to parse start height: %w", parseErr)
 	}
@@ -277,7 +276,7 @@ func (s *Service) processBTCDelegationUnbondedEarlyEvent(
 	subState := types.SubStateEarlyUnbonding
 
 	// Save timelock expire
-	unbondingExpireHeight := uint32(unbondingStartHeight) + delegation.UnbondingTime
+	unbondingExpireHeight := unbondingStartHeight + delegation.UnbondingTime
 	if err := s.db.SaveNewTimeLockExpire(
 		ctx,
 		delegation.StakingTxHashHex,
diff --git a/internal/utils/strconv.go b/internal/utils/strconv.go
new file mode 100644
index 0000000..26a8d30
--- /dev/null
+++ b/internal/utils/strconv.go
@@ -0,0 +1,8 @@
+package utils
+
+import "strconv"
+
+func ParseUint32(s string) (uint32, error) {
+	v, err := strconv.ParseUint(s, 10, 32)
+	return uint32(v), err
+}