diff --git a/.changes/unreleased/changed-20261012-121128.yaml b/.changes/unreleased/changed-20261012-121128.yaml
new file mode 100644
index 0000000..7029101
--- /dev/null
+++ b/.changes/unreleased/changed-20261012-121128.yaml
@@ -0,0 +1,6 @@
+kind: Changed
+body: |-
+  PodGroup webhook logs validate update at verbosity 4 instead of the default level
+custom:
+  Author: "sam-huang1223"
+  Issue: "24"
diff --git a/go.mod b/go.mod
index 6ac3317..7819243 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/kai-scheduler/api
 go 1.26.3
 
 require (
+	github.com/go-logr/logr v1.4.3
 	github.com/onsi/ginkgo/v2 v2.28.1
 	github.com/onsi/gomega v1.39.1
 	github.com/prometheus-operator/prometheus-operator/pkg/apis/monitoring v0.88.0
@@ -27,7 +28,6 @@ require (
 	github.com/evanphx/json-patch/v5 v5.9.11 // indirect
 	github.com/fsnotify/fsnotify v1.9.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
-	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-openapi/jsonpointer v0.21.2 // indirect
 	github.com/go-openapi/jsonreference v0.21.0 // indirect
 	github.com/go-openapi/swag v0.23.1 // indirect
diff --git a/scheduling/v2alpha2/podgroup_webhook.go b/scheduling/v2alpha2/podgroup_webhook.go
index 3008736..8ed62dc 100644
--- a/scheduling/v2alpha2/podgroup_webhook.go
+++ b/scheduling/v2alpha2/podgroup_webhook.go
@@ -43,7 +43,7 @@ func (_ *PodGroup) ValidateCreate(ctx context.Context, podGroup *PodGroup) (admi
 // ValidateUpdate implements webhook.Validator so a webhook will be registered for the type
 func (_ *PodGroup) ValidateUpdate(ctx context.Context, oldPodGroup *PodGroup, podGroup *PodGroup) (admission.Warnings, error) {
 	logger := log.FromContext(ctx)
-	logger.Info("validate update", "namespace", podGroup.Namespace, "name", podGroup.Name)
+	logger.V(4).Info("validate update", "namespace", podGroup.Namespace, "name", podGroup.Name)
 
 	validationErrors := validatePodGroupSpec(&podGroup.Spec)
 
diff --git a/scheduling/v2alpha2/podgroup_webhook_test.go b/scheduling/v2alpha2/podgroup_webhook_test.go
index 66fbafc..8c3df93 100644
--- a/scheduling/v2alpha2/podgroup_webhook_test.go
+++ b/scheduling/v2alpha2/podgroup_webhook_test.go
@@ -9,7 +9,9 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/go-logr/logr/funcr"
 	"k8s.io/utils/ptr"
+	"sigs.k8s.io/controller-runtime/pkg/log"
 )
 
 func TestValidateSubGroups(t *testing.T) {
@@ -536,3 +538,33 @@ func errorsListEqual(want, got []error) bool {
 	}
 	return true
 }
+
+func TestValidateUpdateLogsAboveDefaultVerbosity(t *testing.T) {
+	for _, tt := range []struct {
+		verbosity int
+		wantLog   bool
+	}{
+		{verbosity: 3, wantLog: false},
+		{verbosity: 4, wantLog: true},
+	} {
+		var logs strings.Builder
+		ctx := log.IntoContext(context.Background(), funcr.New(func(_, args string) {
+			logs.WriteString(args + "\n")
+		}, funcr.Options{Verbosity: tt.verbosity}))
+		podGroup := &PodGroup{}
+
+		if _, err := podGroup.ValidateUpdate(ctx, podGroup, podGroup); err != nil {
+			t.Fatalf("ValidateUpdate() error = %v", err)
+		}
+		if got := strings.Contains(logs.String(), "validate update"); got != tt.wantLog {
+			t.Errorf("verbosity %d: logged validate update = %v, want %v", tt.verbosity, got, tt.wantLog)
+		}
+
+		if _, err := podGroup.ValidateCreate(ctx, podGroup); err != nil {
+			t.Fatalf("ValidateCreate() error = %v", err)
+		}
+		if !strings.Contains(logs.String(), "validate create") {
+			t.Errorf("verbosity %d: validate create was not logged", tt.verbosity)
+		}
+	}
+}