diff --git a/api/v1alpha1/reference_types.go b/api/v1alpha1/reference_types.go
index d14c874..b91581c 100644
--- a/api/v1alpha1/reference_types.go
+++ b/api/v1alpha1/reference_types.go
@@ -24,7 +24,7 @@ type CrossNamespaceObjectReference struct {
 	APIVersion string `json:"apiVersion,omitempty"`
 
 	// Kind of the referent
-	// +kubebuilder:validation:Enum=GitRepository;Kustomization;HelmRelease;HelmChart;HelmRepository
+	// +kubebuilder:validation:Enum=Bucket;GitRepository;Kustomization;HelmRelease;HelmChart;HelmRepository
 	// +required
 	Kind string `json:"kind,omitempty"`
 
diff --git a/config/crd/bases/notification.toolkit.fluxcd.io_alerts.yaml b/config/crd/bases/notification.toolkit.fluxcd.io_alerts.yaml
index 8c676ce..48c80be 100644
--- a/config/crd/bases/notification.toolkit.fluxcd.io_alerts.yaml
+++ b/config/crd/bases/notification.toolkit.fluxcd.io_alerts.yaml
@@ -67,6 +67,7 @@ spec:
                     kind:
                       description: Kind of the referent
                       enum:
+                      - Bucket
                       - GitRepository
                       - Kustomization
                       - HelmRelease
diff --git a/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml b/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
index 5f7626e..1ba5d45 100644
--- a/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
+++ b/config/crd/bases/notification.toolkit.fluxcd.io_receivers.yaml
@@ -64,6 +64,7 @@ spec:
                     kind:
                       description: Kind of the referent
                       enum:
+                      - Bucket
                       - GitRepository
                       - Kustomization
                       - HelmRelease
diff --git a/docs/spec/v1alpha1/alert.md b/docs/spec/v1alpha1/alert.md
index 1144444..f5b90b3 100644
--- a/docs/spec/v1alpha1/alert.md
+++ b/docs/spec/v1alpha1/alert.md
@@ -63,6 +63,8 @@ spec:
   eventSources:
     - kind: GitRepository
       name: webapp
+    - kind: Bucket
+      name: secrets
     - kind: Kustomization
       name: webapp-backend
     - kind: Kustomization
diff --git a/docs/spec/v1alpha1/receiver.md b/docs/spec/v1alpha1/receiver.md
index 5e509f6..a8a82cc 100644
--- a/docs/spec/v1alpha1/receiver.md
+++ b/docs/spec/v1alpha1/receiver.md
@@ -178,6 +178,8 @@ spec:
       name: webapp
     - kind: HelmRepository
       name: webapp
+    - kind: Bucket
+      name: secrets
 ```
 
 When the receiver type is set to `generic`, the controller will not perform token validation nor event filtering.
diff --git a/go.mod b/go.mod
index 3955702..4d544aa 100644
--- a/go.mod
+++ b/go.mod
@@ -8,7 +8,7 @@ require (
 	github.com/fluxcd/notification-controller/api v0.0.10
 	github.com/fluxcd/pkg/recorder v0.0.6
 	github.com/fluxcd/pkg/runtime v0.0.1
-	github.com/fluxcd/source-controller/api v0.0.16
+	github.com/fluxcd/source-controller/api v0.0.17
 	github.com/go-logr/logr v0.1.0
 	github.com/google/go-github/v32 v32.0.0
 	github.com/hashicorp/go-retryablehttp v0.6.6
diff --git a/go.sum b/go.sum
index 8667af6..aa68939 100644
--- a/go.sum
+++ b/go.sum
@@ -69,8 +69,8 @@ github.com/fluxcd/pkg/recorder v0.0.6 h1:me/n8syeeGXz50OXoPX3jgIj9AtinvhHdKT9Dy+
 github.com/fluxcd/pkg/recorder v0.0.6/go.mod h1:IfQxfVRSNsWs3B0Yp5B6ObEWwKHILlAx8N7XkoDdhFg=
 github.com/fluxcd/pkg/runtime v0.0.1 h1:h8jztHVF9UMGD7XBQSfXDdw80bpT6BOkd0xe4kknPL0=
 github.com/fluxcd/pkg/runtime v0.0.1/go.mod h1:cU1t0+Ld39pZjMyrrHukw1E++OZFNHxG2qAExfDWQ34=
-github.com/fluxcd/source-controller/api v0.0.16 h1:Mk+X2H+5CX7vfmrVhGT/TR8EnZ8UmZ20TpPyP3e8ZBs=
-github.com/fluxcd/source-controller/api v0.0.16/go.mod h1:PUe+EYQ/s+KPnz2iOCgdf+L6clM0SWkyvdXIpbfpkQE=
+github.com/fluxcd/source-controller/api v0.0.17 h1:LQR6VR/CATAV+RDcK3rPgA66IW5CFbhAH4Prm0UBL5Y=
+github.com/fluxcd/source-controller/api v0.0.17/go.mod h1:PUe+EYQ/s+KPnz2iOCgdf+L6clM0SWkyvdXIpbfpkQE=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
diff --git a/internal/server/receiver_handlers.go b/internal/server/receiver_handlers.go
index af96e37..b060cb6 100644
--- a/internal/server/receiver_handlers.go
+++ b/internal/server/receiver_handlers.go
@@ -217,6 +217,18 @@ func (s *ReceiverServer) annotate(ctx context.Context, resource v1alpha1.CrossNa
 	}
 
 	switch resource.Kind {
+	case sourcev1.BucketKind:
+		var source sourcev1.Bucket
+		if err := s.kubeClient.Get(ctx, resourceName, &source); err != nil {
+			return fmt.Errorf("unable to read Bucket '%s' error: %w", resourceName, err)
+		}
+		if source.Annotations == nil {
+			source.Annotations = make(map[string]string)
+		}
+		source.Annotations[consts.ReconcileAtAnnotation] = metav1.Now().String()
+		if err := s.kubeClient.Update(ctx, &source); err != nil {
+			return fmt.Errorf("unable to annotate Bucket '%s' error: %w", resourceName, err)
+		}
 	case sourcev1.GitRepositoryKind:
 		var source sourcev1.GitRepository
 		if err := s.kubeClient.Get(ctx, resourceName, &source); err != nil {