diff --git a/cmd/service/main.go b/cmd/service/main.go
index 4d66cf3..d365beb 100644
--- a/cmd/service/main.go
+++ b/cmd/service/main.go
@@ -58,6 +58,7 @@ func main() {
 	natsConn, jsCtx := initJetStream()
 
 	custodial, err := custodial.NewCustodial(custodial.Opts{
+		ApprovalTimeout:  ko.MustDuration("system.approve_timeout"),
 		CeloProvider:     celoProvider,
 		LockProvider:     lockProvider,
 		Logg:             lo,
diff --git a/config.toml b/config.toml
index c57d4f2..b44a717 100644
--- a/config.toml
+++ b/config.toml
@@ -13,6 +13,7 @@ registry_address = ""
 [system]
 private_key = ""
 public_key  = ""
+approve_timeout = "30m"
 
 [postgres]
 dsn = ""
diff --git a/internal/custodial/custodial.go b/internal/custodial/custodial.go
index 887d9f8..3ba6e00 100644
--- a/internal/custodial/custodial.go
+++ b/internal/custodial/custodial.go
@@ -3,6 +3,7 @@ package custodial
 import (
 	"context"
 	"crypto/ecdsa"
+	"time"
 
 	"github.com/bsm/redislock"
 	"github.com/celo-org/celo-blockchain/common"
@@ -19,6 +20,7 @@ import (
 
 type (
 	Opts struct {
+		ApprovalTimeout  time.Duration
 		CeloProvider     *celoutils.Provider
 		LockProvider     *redislock.Client
 		Logg             logf.Logger
@@ -32,6 +34,7 @@ type (
 	}
 
 	Custodial struct {
+		ApprovalTimeout  time.Duration
 		Abis             map[string]*w3.Func
 		CeloProvider     *celoutils.Provider
 		LockProvider     *redislock.Client
@@ -69,6 +72,7 @@ func NewCustodial(o Opts) (*Custodial, error) {
 	}
 
 	return &Custodial{
+		ApprovalTimeout:  o.ApprovalTimeout,
 		Abis:             initAbis(),
 		CeloProvider:     o.CeloProvider,
 		LockProvider:     o.LockProvider,
diff --git a/internal/tasker/task/sign_transfer_auth.go b/internal/tasker/task/sign_transfer_auth.go
index 95acabc..9387f59 100644
--- a/internal/tasker/task/sign_transfer_auth.go
+++ b/internal/tasker/task/sign_transfer_auth.go
@@ -4,7 +4,6 @@ import (
 	"context"
 	"encoding/json"
 	"math/big"
-	"time"
 
 	"github.com/bsm/redislock"
 	"github.com/celo-org/celo-blockchain/common/hexutil"
@@ -159,7 +158,7 @@ func SignTransferAuthorizationProcessor(cu *custodial.Custodial) func(context.Co
 				&tasker.Task{
 					Payload: taskPayload,
 				},
-				asynq.ProcessIn(time.Minute*15),
+				asynq.ProcessIn(cu.ApprovalTimeout),
 			)
 			if err != nil {
 				return err