diff --git a/internal/services/monitor/monitor_smart_detector_alert_rule_resource.go b/internal/services/monitor/monitor_smart_detector_alert_rule_resource.go
index d21ced31d48d..b9a9d5bd1e9a 100644
--- a/internal/services/monitor/monitor_smart_detector_alert_rule_resource.go
+++ b/internal/services/monitor/monitor_smart_detector_alert_rule_resource.go
@@ -55,6 +55,11 @@ func resourceMonitorSmartDetectorAlertRule() *pluginsdk.Resource {
 				Required: true,
 				ValidateFunc: validation.StringInSlice([]string{
 					"FailureAnomaliesDetector",
+					"RequestPerformanceDegradationDetector",
+					"DependencyPerformanceDegradationDetector",
+					"ExceptionVolumeChangedDetector",
+					"TraceSeverityDetector",
+					"MemoryLeakDetector",
 				}, false),
 			},
 
diff --git a/website/docs/r/monitor_smart_detector_alert_rule.html.markdown b/website/docs/r/monitor_smart_detector_alert_rule.html.markdown
index 64f1cbce97c1..0315402cec3c 100644
--- a/website/docs/r/monitor_smart_detector_alert_rule.html.markdown
+++ b/website/docs/r/monitor_smart_detector_alert_rule.html.markdown
@@ -53,7 +53,7 @@ The following arguments are supported:
 
 * `resource_group_name` - (Required) Specifies the name of the resource group in which the Monitor Smart Detector Alert Rule should exist. Changing this forces a new resource to be created.
 
-* `detector_type` - (Required) Specifies the Built-In Smart Detector type that this alert rule will use. Currently the only possible value is `FailureAnomaliesDetector`.
+* `detector_type` - (Required) Specifies the Built-In Smart Detector type that this alert rule will use. Currently the only possible values are `FailureAnomaliesDetector`, `RequestPerformanceDegradationDetector`, `DependencyPerformanceDegradationDetector`, `ExceptionVolumeChangedDetector`, `TraceSeverityDetector`, `MemoryLeakDetector`.
 
 * `scope_resource_ids` - (Required) Specifies the scopes of this Smart Detector Alert Rule.