diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..cfc1e2c
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,23 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    commit-message:
+      include: "scope"
+    labels:
+      - "deps"
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    commit-message:
+      include: "scope"
+    labels:
+      - "deps"
diff --git a/observability/module.go b/observability/module.go
index 02ec2a8..8ac86f3 100644
--- a/observability/module.go
+++ b/observability/module.go
@@ -44,6 +44,8 @@ func (Observer) CaddyModule() caddy.ModuleInfo {
 }
 
 func (m *Observer) Provision(ctx caddy.Context) error {
+	registerer := prometheus.DefaultRegisterer // TODO: use ctx.GetMetricsRegisterer() on caddy >= 2.9.0
+
 	if m.ServiceID == "" {
 		return fmt.Errorf("service_id is required")
 	}
@@ -61,7 +63,7 @@ func (m *Observer) Provision(ctx caddy.Context) error {
 
 	labels := []string{"server_name", "service_id", "process_id", "rule_id"}
 
-	m.metrics.requestsInFlight = promauto.NewGaugeVec(prometheus.GaugeOpts{
+	m.metrics.requestsInFlight = promauto.With(registerer).NewGaugeVec(prometheus.GaugeOpts{
 		Namespace:   namespace,
 		Subsystem:   subsystem,
 		Name:        "requests_in_flight",
@@ -69,7 +71,7 @@ func (m *Observer) Provision(ctx caddy.Context) error {
 		ConstLabels: prometheus.Labels{},
 	}, labels)
 
-	m.metrics.requestsCount = promauto.NewCounterVec(prometheus.CounterOpts{
+	m.metrics.requestsCount = promauto.With(registerer).NewCounterVec(prometheus.CounterOpts{
 		Namespace:   namespace,
 		Subsystem:   subsystem,
 		Name:        "requests_count",
@@ -77,7 +79,7 @@ func (m *Observer) Provision(ctx caddy.Context) error {
 		ConstLabels: prometheus.Labels{},
 	}, append(labels, "status_code"))
 
-	m.metrics.requestsTtfb = promauto.NewHistogramVec(prometheus.HistogramOpts{
+	m.metrics.requestsTtfb = promauto.With(registerer).NewHistogramVec(prometheus.HistogramOpts{
 		Namespace:   namespace,
 		Subsystem:   subsystem,
 		Name:        "requests_ttfb",
@@ -85,7 +87,7 @@ func (m *Observer) Provision(ctx caddy.Context) error {
 		ConstLabels: prometheus.Labels{},
 	}, labels)
 
-	m.metrics.requestsDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
+	m.metrics.requestsDuration = promauto.With(registerer).NewHistogramVec(prometheus.HistogramOpts{
 		Namespace:   namespace,
 		Subsystem:   subsystem,
 		Name:        "requests_duration",