diff --git a/scrape/target.go b/scrape/target.go
index 0af2b8ba14..2e43750af7 100644
--- a/scrape/target.go
+++ b/scrape/target.go
@@ -190,9 +190,9 @@ func (t *Target) LabelsRange(f func(l labels.Label)) {
 
 // DiscoveredLabels returns a copy of the target's labels before any processing.
 func (t *Target) DiscoveredLabels(lb *labels.Builder) labels.Labels {
-	t.mtx.Lock()
+	t.mtx.RLock()
 	cfg, tLabels, tgLabels := t.scrapeConfig, t.tLabels, t.tgLabels
-	t.mtx.Unlock()
+	t.mtx.RUnlock()
 	PopulateDiscoveredLabels(lb, cfg, tLabels, tgLabels)
 	return lb.Labels()
 }
@@ -208,9 +208,9 @@ func (t *Target) SetScrapeConfig(scrapeConfig *config.ScrapeConfig, tLabels, tgL
 
 // URL returns a copy of the target's URL.
 func (t *Target) URL() *url.URL {
-	t.mtx.Lock()
+	t.mtx.RLock()
 	configParams := t.scrapeConfig.Params
-	t.mtx.Unlock()
+	t.mtx.RUnlock()
 	params := url.Values{}
 
 	for k, v := range configParams {