diff --git a/pkg/reconciler/pingsource/controller.go b/pkg/reconciler/pingsource/controller.go
index 724908e6a67..a00bd2eecb9 100644
--- a/pkg/reconciler/pingsource/controller.go
+++ b/pkg/reconciler/pingsource/controller.go
@@ -19,9 +19,10 @@ package pingsource
 import (
 	"context"
 
+	"knative.dev/eventing/pkg/apis/sources"
 	sourcesv1 "knative.dev/eventing/pkg/apis/sources/v1"
 
-	serviceaccountinformer "knative.dev/pkg/client/injection/kube/informers/core/v1/serviceaccount"
+	serviceaccountinformer "knative.dev/pkg/client/injection/kube/informers/core/v1/serviceaccount/filtered"
 
 	"go.uber.org/zap"
 
@@ -77,7 +78,7 @@ func NewController(
 
 	deploymentInformer := deploymentinformer.Get(ctx)
 	pingSourceInformer := pingsourceinformer.Get(ctx)
-	serviceaccountInformer := serviceaccountinformer.Get(ctx)
+	serviceaccountInformer := serviceaccountinformer.Get(ctx, sources.OIDCTokenRoleLabelSelector)
 
 	r := &Reconciler{
 		kubeClientSet:        kubeclient.Get(ctx),
diff --git a/pkg/reconciler/pingsource/controller_test.go b/pkg/reconciler/pingsource/controller_test.go
index 33b740443e0..f3516e03c14 100644
--- a/pkg/reconciler/pingsource/controller_test.go
+++ b/pkg/reconciler/pingsource/controller_test.go
@@ -17,12 +17,15 @@ limitations under the License.
 package pingsource
 
 import (
+	"context"
 	"testing"
 
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"knative.dev/eventing/pkg/apis/feature"
 
+	filteredFactory "knative.dev/pkg/client/injection/kube/informers/factory/filtered"
+	"knative.dev/eventing/pkg/apis/sources"
 	"knative.dev/pkg/configmap"
 	"knative.dev/pkg/logging"
 	"knative.dev/pkg/metrics"
@@ -39,7 +42,7 @@ import (
 )
 
 func TestNew(t *testing.T) {
-	ctx, _ := SetupFakeContext(t)
+	ctx, _ := SetupFakeContext(t, SetUpInformerSelector)
 	c := NewController(ctx, configmap.NewStaticWatcher(
 		&corev1.ConfigMap{
 			ObjectMeta: metav1.ObjectMeta{
@@ -90,3 +93,8 @@ func TestNew(t *testing.T) {
 		t.Fatal("Expected NewController to return a non-nil value")
 	}
 }
+
+func SetUpInformerSelector(ctx context.Context) context.Context {
+	ctx = filteredFactory.WithSelectors(ctx, sources.OIDCTokenRoleLabelSelector)
+	return ctx
+}
\ No newline at end of file