diff --git a/internal/health/monitor/monitor.go b/internal/health/monitor/monitor.go
index 93875115..2e019403 100644
--- a/internal/health/monitor/monitor.go
+++ b/internal/health/monitor/monitor.go
@@ -26,6 +26,8 @@ type (
 		config  types.HealthCheckConfig
 		url     synk.Value[*url.URL]
 
+		onUpdateURL func(url *url.URL)
+
 		status     synk.Value[types.HealthStatus]
 		lastResult synk.Value[types.HealthCheckResult]
 
@@ -151,6 +153,9 @@ func (mon *monitor) UpdateURL(url *url.URL) {
 		return
 	}
 	mon.url.Store(url)
+	if mon.onUpdateURL != nil {
+		mon.onUpdateURL(url)
+	}
 }
 
 // URL implements HealthChecker.
diff --git a/internal/health/monitor/new.go b/internal/health/monitor/new.go
index dbad4260..285f081b 100644
--- a/internal/health/monitor/new.go
+++ b/internal/health/monitor/new.go
@@ -97,7 +97,7 @@ func NewDockerHealthMonitor(config types.HealthCheckConfig, client *docker.Share
 	isFirstFailure := true
 
 	var mon monitor
-	mon.init(displayURL, config, func(u *url.URL) (result Result, err error) {
+	mon.init(displayURL, config, func(_ *url.URL) (result Result, err error) {
 		result, err = healthcheck.Docker(mon.Context(), state, config.Timeout)
 		if err != nil {
 			if isFirstFailure {
@@ -106,11 +106,11 @@ func NewDockerHealthMonitor(config types.HealthCheckConfig, client *docker.Share
 					logger.Err(err).Msg("docker health check failed, using fallback")
 				}
 			}
-			fallback.UpdateURL(u)
 			return fallback.CheckHealth()
 		}
 		return result, nil
 	})
+	mon.onUpdateURL = fallback.UpdateURL
 	return &mon
 }