diff --git a/internal/metrics/uptime/uptime.go b/internal/metrics/uptime/uptime.go
index 9929de5d..825ebff7 100644
--- a/internal/metrics/uptime/uptime.go
+++ b/internal/metrics/uptime/uptime.go
@@ -18,8 +18,8 @@ import (
 
 type (
 	StatusByAlias struct {
-		Map       map[string]routes.HealthInfo `json:"statuses"`
-		Timestamp int64                        `json:"timestamp"`
+		Map       map[string]*routes.HealthInfo `json:"statuses"`
+		Timestamp int64                         `json:"timestamp"`
 	} // @name RouteStatusesByAlias
 	Status struct {
 		Status    types.HealthStatus `json:"status" swaggertype:"string" enums:"healthy,unhealthy,unknown,napping,starting"`
diff --git a/internal/route/routes/query.go b/internal/route/routes/query.go
index 4ba82dae..c0e7e834 100644
--- a/internal/route/routes/query.go
+++ b/internal/route/routes/query.go
@@ -54,23 +54,23 @@ func (info *HealthInfo) UnmarshalJSON(data []byte) error {
 	return nil
 }
 
-func GetHealthInfo() map[string]HealthInfo {
-	healthMap := make(map[string]HealthInfo, NumRoutes())
+func GetHealthInfo() map[string]*HealthInfo {
+	healthMap := make(map[string]*HealthInfo, NumRoutes())
 	for r := range Iter {
 		healthMap[r.Name()] = getHealthInfo(r)
 	}
 	return healthMap
 }
 
-func getHealthInfo(r types.Route) HealthInfo {
+func getHealthInfo(r types.Route) *HealthInfo {
 	mon := r.HealthMonitor()
 	if mon == nil {
-		return HealthInfo{
+		return &HealthInfo{
 			Status: types.StatusUnknown,
 			Detail: "n/a",
 		}
 	}
-	return HealthInfo{
+	return &HealthInfo{
 		Status:  mon.Status(),
 		Uptime:  mon.Uptime(),
 		Latency: mon.Latency(),
diff --git a/internal/types/health.go b/internal/types/health.go
index 8121ab8f..f6502b67 100644
--- a/internal/types/health.go
+++ b/internal/types/health.go
@@ -139,6 +139,28 @@ func (s HealthStatus) Idling() bool {
 	return s&IdlingMask != 0
 }
 
+func (s HealthStatus) MarshalJSON() ([]byte, error) {
+	return strconv.AppendQuote(nil, s.String()), nil
+}
+
+func (s *HealthStatus) UnmarshalJSON(data []byte) error {
+	var v any
+	if err := json.Unmarshal(data, &v); err != nil {
+		return err
+	}
+	switch v := v.(type) {
+	case string:
+		*s = NewHealthStatusFromString(v)
+		return nil
+	case int:
+		if v > 0 && v < NumStatuses {
+			*s = HealthStatus(v)
+			return nil
+		}
+	}
+	return fmt.Errorf("invalid health status type %T of value %v", v, v)
+}
+
 func (jsonRepr *HealthJSONRepr) MarshalJSON() ([]byte, error) {
 	var url string
 	if jsonRepr.URL != nil {