diff --git a/pkg/operator/resources/realtimeapi/api.go b/pkg/operator/resources/realtimeapi/api.go
index 42823ed863..a322870e8e 100644
--- a/pkg/operator/resources/realtimeapi/api.go
+++ b/pkg/operator/resources/realtimeapi/api.go
@@ -150,6 +150,11 @@ func RefreshAPI(apiName string, force bool) (string, error) {
 		return "", errors.Wrap(err, "upload api spec")
 	}
 
+	// Reupload api spec to the same PredictorID but with the new DeploymentID
+	if err := config.AWS.UploadJSONToS3(api, config.Cluster.Bucket, api.PredictorKey); err != nil {
+		return "", errors.Wrap(err, "upload predictor spec")
+	}
+
 	if err := applyK8sDeployment(api, prevDeployment); err != nil {
 		return "", err
 	}
diff --git a/pkg/operator/resources/realtimeapi/metrics.go b/pkg/operator/resources/realtimeapi/metrics.go
index acf03df83e..4675cffe66 100644
--- a/pkg/operator/resources/realtimeapi/metrics.go
+++ b/pkg/operator/resources/realtimeapi/metrics.go
@@ -236,6 +236,10 @@ func getAPIDimensions(api *spec.API) []*cloudwatch.Dimension {
 			Name:  aws.String("PredictorID"),
 			Value: aws.String(api.PredictorID),
 		},
+		{
+			Name:  aws.String("DeploymentID"),
+			Value: aws.String(api.DeploymentID),
+		},
 	}
 }
 
diff --git a/pkg/workloads/cortex/lib/type/api.py b/pkg/workloads/cortex/lib/type/api.py
index 71aa77bcf1..016cbbfabd 100644
--- a/pkg/workloads/cortex/lib/type/api.py
+++ b/pkg/workloads/cortex/lib/type/api.py
@@ -32,6 +32,7 @@ def __init__(self, provider, storage, model_dir, cache_dir=".", **kwargs):
         self.provider = provider
         self.id = kwargs["id"]
         self.predictor_id = kwargs["predictor_id"]
+        self.deployment_id = kwargs["deployment_id"]
         self.key = kwargs["key"]
         self.metadata_root = kwargs["metadata_root"]
         self.name = kwargs["name"]
@@ -70,6 +71,7 @@ def metric_dimensions_with_id(self):
         return [
             {"Name": "APIName", "Value": self.name},
             {"Name": "PredictorID", "Value": self.predictor_id},
+            {"Name": "DeploymentID", "Value": self.deployment_id},
         ]
 
     def metric_dimensions(self):