diff --git a/database/database.go b/database/database.go
index bb73bc5..5e65e31 100644
--- a/database/database.go
+++ b/database/database.go
@@ -71,7 +71,6 @@ func New(cfg config.Database) Database {
 }
 
 type db struct {
-	Database
 	// metrics is the list of metric name (as a key) associated with their usage based on the different collector activated.
 	// This struct is our "database".
 	metrics map[string]*v1.Metric
@@ -115,6 +114,8 @@ type db struct {
 	partialMetricsUsageMutex sync.Mutex
 }
 
+var _ = Database(&db{})
+
 func (d *db) DeleteMetric(name string) bool {
 	d.metricsMutex.Lock()
 	defer d.metricsMutex.Unlock()
diff --git a/source/grafana/grafana.go b/source/grafana/grafana.go
index 7446129..aa38603 100644
--- a/source/grafana/grafana.go
+++ b/source/grafana/grafana.go
@@ -71,13 +71,14 @@ func NewCollector(db database.Database, cfg config.GrafanaCollector) (async.Simp
 }
 
 type grafanaCollector struct {
-	async.SimpleTask
 	metricUsageClient *usageclient.Client
 	grafanaURL        string
 	grafanaClient     *grafanaapi.GrafanaHTTPAPI
 	logger            *logrus.Entry
 }
 
+var _ async.SimpleTask = &grafanaCollector{}
+
 func (c *grafanaCollector) Execute(ctx context.Context, _ context.CancelFunc) error {
 	hits, err := c.collectAllDashboardUID(ctx)
 	if err != nil {
diff --git a/source/labels/labels.go b/source/labels/labels.go
index 690d4e0..8c3934e 100644
--- a/source/labels/labels.go
+++ b/source/labels/labels.go
@@ -51,7 +51,6 @@ func NewCollector(db database.Database, cfg *config.LabelsCollector) (async.Simp
 }
 
 type labelCollector struct {
-	async.SimpleTask
 	promClient        v1.API
 	db                database.Database
 	metricUsageClient client.Client
@@ -60,6 +59,8 @@ type labelCollector struct {
 	logger            *logrus.Entry
 }
 
+var _ async.SimpleTask = &labelCollector{}
+
 func (c *labelCollector) Execute(ctx context.Context, _ context.CancelFunc) error {
 	now := time.Now()
 	start := now.Add(time.Duration(-c.period))
diff --git a/source/metric/metric.go b/source/metric/metric.go
index 77f755a..c91d634 100644
--- a/source/metric/metric.go
+++ b/source/metric/metric.go
@@ -40,13 +40,14 @@ func NewCollector(db database.Database, cfg config.MetricCollector) (async.Simpl
 }
 
 type metricCollector struct {
-	async.SimpleTask
 	client v1.API
 	db     database.Database
 	period model.Duration
 	logger *logrus.Entry
 }
 
+var _ async.SimpleTask = &metricCollector{}
+
 func (c *metricCollector) Execute(ctx context.Context, _ context.CancelFunc) error {
 	now := time.Now()
 	start := now.Add(time.Duration(-c.period))
diff --git a/source/perses/perses.go b/source/perses/perses.go
index 35e034d..64d430f 100644
--- a/source/perses/perses.go
+++ b/source/perses/perses.go
@@ -60,13 +60,14 @@ func NewCollector(db database.Database, cfg config.PersesCollector) (async.Simpl
 }
 
 type persesCollector struct {
-	async.SimpleTask
 	persesClient      persesClientV1.DashboardInterface
 	metricUsageClient *usageclient.Client
 	persesURL         string
 	logger            *logrus.Entry
 }
 
+var _ async.SimpleTask = &persesCollector{}
+
 func (c *persesCollector) Execute(_ context.Context, _ context.CancelFunc) error {
 	dashboards, err := c.persesClient.List("")
 	if err != nil {
diff --git a/source/rules/rules.go b/source/rules/rules.go
index d5adc06..7a6002b 100644
--- a/source/rules/rules.go
+++ b/source/rules/rules.go
@@ -62,7 +62,6 @@ func NewCollector(db database.Database, cfg *config.RulesCollector) (async.Simpl
 }
 
 type rulesCollector struct {
-	async.SimpleTask
 	promClient        v1.API
 	metricUsageClient *usageclient.Client
 	promURL           string
@@ -70,6 +69,8 @@ type rulesCollector struct {
 	retry             uint
 }
 
+var _ async.SimpleTask = &rulesCollector{}
+
 func (c *rulesCollector) Execute(ctx context.Context, _ context.CancelFunc) error {
 	result, err := c.getRules(ctx)
 	if err != nil {