diff --git a/README.md b/README.md
index b65b997..c36b449 100644
--- a/README.md
+++ b/README.md
@@ -114,10 +114,9 @@ func BotVerificationMiddleware(v *knownbots.Validator) func(http.Handler) http.H
 
 ```go
 v, err := knownbots.New(
-    knownbots.WithRoot("./custom-bots"),           // Custom bot config directory
-    knownbots.WithSchedulerInterval(12*time.Hour), // IP refresh frequency
-    knownbots.WithFailLimit(5000),                 // Failed lookup cache size
-    knownbots.WithClassifyUA(),                    // Enable UA classification (disabled by default)
+    knownbots.WithRoot("./custom-bots"),    // Custom bot config directory
+    knownbots.WithFailLimit(5000),          // Failed lookup cache size
+    knownbots.WithClassifyUA(),             // Enable UA classification (disabled by default)
 )
 
 // Disable logging to reduce console pollution (e.g., in benchmarks)
@@ -325,9 +324,6 @@ func (v *Validator) Close() error
 // WithRoot sets custom bot directory (default: "./bots")
 func WithRoot(dir string) Option
 
-// WithSchedulerInterval sets refresh interval (default: 24h)
-func WithSchedulerInterval(interval time.Duration) Option
-
 // WithFailLimit sets failed lookup cache size (default: 1000)
 func WithFailLimit(limit int) Option
 ```
diff --git a/config.go b/config.go
index e311c6c..e9e8e38 100644
--- a/config.go
+++ b/config.go
@@ -1,11 +1,8 @@
 package knownbots
 
-import "time"
-
 // Config holds the options for creating a Validator.
 type Config struct {
 	Root       string
-	Interval   time.Duration
 	FailLimit  int
 	ClassifyUA bool
 }
@@ -20,13 +17,6 @@ func WithRoot(dir string) Option {
 	}
 }
 
-// WithSchedulerInterval sets the background scheduler interval.
-func WithSchedulerInterval(interval time.Duration) Option {
-	return func(c *Config) {
-		c.Interval = interval
-	}
-}
-
 // WithFailLimit sets the limit for failed lookup cache.
 func WithFailLimit(limit int) Option {
 	return func(c *Config) {
diff --git a/knownbots_test.go b/knownbots_test.go
index 15b8ac2..4a6fea3 100644
--- a/knownbots_test.go
+++ b/knownbots_test.go
@@ -6,7 +6,6 @@ import (
 	"path/filepath"
 	"sync/atomic"
 	"testing"
-	"time"
 )
 
 func init() {
@@ -589,12 +588,6 @@ func TestConfigOptions(t *testing.T) {
 		t.Errorf("WithRoot failed: got %q, want %q", cfg.Root, "/custom/bots")
 	}
 
-	// Test WithSchedulerInterval
-	WithSchedulerInterval(1 * time.Hour)(cfg)
-	if cfg.Interval != 1*time.Hour {
-		t.Errorf("WithSchedulerInterval failed: got %v, want %v", cfg.Interval, 1*time.Hour)
-	}
-
 	// Test WithFailLimit
 	WithFailLimit(500)(cfg)
 	if cfg.FailLimit != 500 {
diff --git a/validator.go b/validator.go
index db0d02f..9cac2e4 100644
--- a/validator.go
+++ b/validator.go
@@ -39,7 +39,6 @@ type Validator struct {
 	bots       atomic.Pointer[[]*Bot]          // []*Bot, atomic for lock-free reads
 	uaIndex    atomic.Pointer[map[byte][]*Bot] // map[byte][]*Bot, byte-level index for UA lookup
 	cancel     context.CancelFunc
-	interval   time.Duration
 	failLimit  int
 	classifyUA bool
 }
@@ -60,7 +59,6 @@ func (v *Validator) setBots(bots []*Bot) {
 func New(opts ...Option) (*Validator, error) {
 	cfg := Config{
 		Root:       "./bots",
-		Interval:   SchedulerInterval,
 		FailLimit:  FailLRULimit,
 		ClassifyUA: false, // Default: skip classifyUA for performance
 	}
@@ -89,7 +87,6 @@ func New(opts ...Option) (*Validator, error) {
 	v := &Validator{
 		root:       cfg.Root,
 		cancel:     cancel,
-		interval:   cfg.Interval,
 		failLimit:  cfg.FailLimit,
 		classifyUA: cfg.ClassifyUA,
 	}
@@ -106,7 +103,7 @@ func New(opts ...Option) (*Validator, error) {
 //   - persistCaches: write valid cache entries to persistent storage
 func (v *Validator) startScheduler(ctx context.Context) {
 	httpClient := &http.Client{Timeout: 30 * time.Second}
-	ticker := time.NewTicker(v.interval)
+	ticker := time.NewTicker(SchedulerInterval)
 	defer ticker.Stop()
 
 	// Run immediately on start