diff --git a/api/v1beta1/grafanaalertrulegroup_types.go b/api/v1beta1/grafanaalertrulegroup_types.go
index 1f2dc6475..e8d33c7ef 100644
--- a/api/v1beta1/grafanaalertrulegroup_types.go
+++ b/api/v1beta1/grafanaalertrulegroup_types.go
@@ -63,7 +63,7 @@ type AlertRule struct {
 	// +kubebuilder:validation:Required
 	Data []*AlertQuery `json:"data"`
 
-	// +kubebuilder:validation:Enum=OK;Alerting;Error
+	// +kubebuilder:validation:Enum=OK;Alerting;Error;KeepLast
 	ExecErrState string `json:"execErrState"`
 
 	// +kubebuilder:validation:Type=string
@@ -76,7 +76,7 @@ type AlertRule struct {
 
 	Labels map[string]string `json:"labels,omitempty"`
 
-	// +kubebuilder:validation:Enum=Alerting;NoData;OK
+	// +kubebuilder:validation:Enum=Alerting;NoData;OK;KeepLast
 	NoDataState *string `json:"noDataState"`
 
 	// +kubebuilder:validation:MinLength=1
diff --git a/config/crd/bases/grafana.integreatly.org_grafanaalertrulegroups.yaml b/config/crd/bases/grafana.integreatly.org_grafanaalertrulegroups.yaml
index 9198ec2cc..39d9582c5 100644
--- a/config/crd/bases/grafana.integreatly.org_grafanaalertrulegroups.yaml
+++ b/config/crd/bases/grafana.integreatly.org_grafanaalertrulegroups.yaml
@@ -101,6 +101,7 @@ spec:
                       - OK
                       - Alerting
                       - Error
+                      - KeepLast
                       type: string
                     for:
                       format: duration
@@ -117,6 +118,7 @@ spec:
                       - Alerting
                       - NoData
                       - OK
+                      - KeepLast
                       type: string
                     title:
                       example: Always firing
diff --git a/config/grafana.integreatly.org_grafanaalertrulegroups.yaml b/config/grafana.integreatly.org_grafanaalertrulegroups.yaml
index 5c441017e..6aabeacda 100644
--- a/config/grafana.integreatly.org_grafanaalertrulegroups.yaml
+++ b/config/grafana.integreatly.org_grafanaalertrulegroups.yaml
@@ -154,6 +154,7 @@ spec:
                       - OK
                       - Alerting
                       - Error
+                      - KeepLast
                       type: string
                     for:
                       format: duration
@@ -170,6 +171,7 @@ spec:
                       - Alerting
                       - NoData
                       - OK
+                      - KeepLast
                       type: string
                     title:
                       example: Always firing
diff --git a/deploy/helm/grafana-operator/crds/grafana.integreatly.org_grafanaalertrulegroups.yaml b/deploy/helm/grafana-operator/crds/grafana.integreatly.org_grafanaalertrulegroups.yaml
index 9198ec2cc..39d9582c5 100644
--- a/deploy/helm/grafana-operator/crds/grafana.integreatly.org_grafanaalertrulegroups.yaml
+++ b/deploy/helm/grafana-operator/crds/grafana.integreatly.org_grafanaalertrulegroups.yaml
@@ -101,6 +101,7 @@ spec:
                       - OK
                       - Alerting
                       - Error
+                      - KeepLast
                       type: string
                     for:
                       format: duration
@@ -117,6 +118,7 @@ spec:
                       - Alerting
                       - NoData
                       - OK
+                      - KeepLast
                       type: string
                     title:
                       example: Always firing
diff --git a/deploy/kustomize/base/crds.yaml b/deploy/kustomize/base/crds.yaml
index bd2300a5d..291edd7bd 100644
--- a/deploy/kustomize/base/crds.yaml
+++ b/deploy/kustomize/base/crds.yaml
@@ -100,6 +100,7 @@ spec:
                       - OK
                       - Alerting
                       - Error
+                      - KeepLast
                       type: string
                     for:
                       format: duration
@@ -116,6 +117,7 @@ spec:
                       - Alerting
                       - NoData
                       - OK
+                      - KeepLast
                       type: string
                     title:
                       example: Always firing