diff --git a/prometheus/metric_test.go b/prometheus/metric_test.go
index 6100e0d8a..445b838dc 100644
--- a/prometheus/metric_test.go
+++ b/prometheus/metric_test.go
@@ -16,6 +16,7 @@ package prometheus
 import (
 	"testing"
 
+	//nolint:staticcheck // Ignore SA1019. Need to keep deprecated package for compatibility.
 	"github.com/golang/protobuf/proto"
 	dto "github.com/prometheus/client_model/go"
 )