diff --git a/pkg/costattribution/tracker.go b/pkg/costattribution/tracker.go
index 2b3e302715..8dd61a864e 100644
--- a/pkg/costattribution/tracker.go
+++ b/pkg/costattribution/tracker.go
@@ -10,10 +10,11 @@ import (
 	"time"
 
 	"github.com/go-kit/log"
-	"github.com/grafana/mimir/pkg/mimirpb"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/prometheus/model/labels"
 	"go.uber.org/atomic"
+
+	"github.com/grafana/mimir/pkg/mimirpb"
 )
 
 type TrackerState int
diff --git a/pkg/costattribution/tracker_test.go b/pkg/costattribution/tracker_test.go
index bd5360f555..3ad8b0a4de 100644
--- a/pkg/costattribution/tracker_test.go
+++ b/pkg/costattribution/tracker_test.go
@@ -8,12 +8,13 @@ import (
 	"testing"
 	"time"
 
-	"github.com/grafana/mimir/pkg/mimirpb"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/testutil"
 	"github.com/prometheus/prometheus/model/labels"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+
+	"github.com/grafana/mimir/pkg/mimirpb"
 )
 
 func TestTracker_hasSameLabels(t *testing.T) {