diff --git a/api/v1beta2/provider_types.go b/api/v1beta2/provider_types.go
index 8bfb4f7..ba08b1e 100644
--- a/api/v1beta2/provider_types.go
+++ b/api/v1beta2/provider_types.go
@@ -57,7 +57,6 @@ type ProviderSpec struct {
 	Type string `json:"type"`
 
 	// Interval at which to reconcile the Provider with its Secret references.
-	// +kubebuilder:default="600s"
 	// +kubebuilder:validation:Type=string
 	// +kubebuilder:validation:Pattern="^([0-9]+(\\.[0-9]+)?(ms|s|m|h))+$"
 	// +optional
diff --git a/api/v1beta2/receiver_types.go b/api/v1beta2/receiver_types.go
index e0cf689..d52a499 100644
--- a/api/v1beta2/receiver_types.go
+++ b/api/v1beta2/receiver_types.go
@@ -51,7 +51,6 @@ type ReceiverSpec struct {
 	Type string `json:"type"`
 
 	// Interval at which to reconcile the Receiver with its Secret references.
-	// +kubebuilder:default="600s"
 	// +kubebuilder:validation:Type=string
 	// +kubebuilder:validation:Pattern="^([0-9]+(\\.[0-9]+)?(ms|s|m|h))+$"
 	// +optional
diff --git a/config/crd/bases/notification.toolkit.fluxcd.io_providers.yaml b/config/crd/bases/notification.toolkit.fluxcd.io_providers.yaml
index dabaa12..5ca7a49 100644
--- a/config/crd/bases/notification.toolkit.fluxcd.io_providers.yaml
+++ b/config/crd/bases/notification.toolkit.fluxcd.io_providers.yaml
@@ -250,7 +250,6 @@ spec:
                 maxLength: 2048
                 type: string
               interval:
-                default: 600s
                 description: Interval at which to reconcile the Provider with its
                   Secret references.
                 pattern: ^([0-9]+(\.[0-9]+)?(ms|s|m|h))+$
diff --git a/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml b/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
index 3837d81..17367b2 100644
--- a/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
+++ b/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
@@ -254,7 +254,6 @@ spec:
                   type: string
                 type: array
               interval:
-                default: 600s
                 description: Interval at which to reconcile the Receiver with its
                   Secret references.
                 pattern: ^([0-9]+(\.[0-9]+)?(ms|s|m|h))+$
diff --git a/controllers/provider_controller_test.go b/controllers/provider_controller_test.go
index a29bc25..689d21d 100644
--- a/controllers/provider_controller_test.go
+++ b/controllers/provider_controller_test.go
@@ -74,7 +74,6 @@ func TestProviderReconciler_Reconcile(t *testing.T) {
 
 		g.Expect(conditions.Has(resultP, meta.ReconcilingCondition)).To(BeFalse())
 		g.Expect(controllerutil.ContainsFinalizer(resultP, apiv1.NotificationFinalizer)).To(BeTrue())
-		g.Expect(resultP.Spec.Interval.Duration).To(BeIdenticalTo(10 * time.Minute))
 	})
 
 	t.Run("fails with secret not found error", func(t *testing.T) {
diff --git a/controllers/receiver_controller_test.go b/controllers/receiver_controller_test.go
index f0b3047..0f12346 100644
--- a/controllers/receiver_controller_test.go
+++ b/controllers/receiver_controller_test.go
@@ -102,7 +102,6 @@ func TestReceiverReconciler_Reconcile(t *testing.T) {
 
 		g.Expect(conditions.Has(resultR, meta.ReconcilingCondition)).To(BeFalse())
 		g.Expect(controllerutil.ContainsFinalizer(resultR, apiv1.NotificationFinalizer)).To(BeTrue())
-		g.Expect(resultR.Spec.Interval.Duration).To(BeIdenticalTo(10 * time.Minute))
 	})
 
 	t.Run("fails with secret not found error", func(t *testing.T) {