diff --git a/source/source_stats_reporter.go b/source/source_stats_reporter.go
index 059ad66dd..7e2a5d343 100644
--- a/source/source_stats_reporter.go
+++ b/source/source_stats_reporter.go
@@ -18,9 +18,10 @@ package source
 
 import (
 	"context"
+	"strconv"
+
 	"go.opencensus.io/stats/view"
 	"knative.dev/pkg/metrics"
-	"strconv"
 
 	"go.opencensus.io/stats"
 	"go.opencensus.io/tag"
diff --git a/test/mako/alerter/slack/message_test.go b/test/mako/alerter/slack/message_test.go
index fb8267181..89e10d50e 100644
--- a/test/mako/alerter/slack/message_test.go
+++ b/test/mako/alerter/slack/message_test.go
@@ -34,8 +34,8 @@ func TestMain(m *testing.M) {
 		config: repoConfig{
 			repo: "test_repo",
 			channels: []channel{
-				channel{name: "test_channel1", identity: "fsfdsf"},
-				channel{name: "test_channel2", identity: "fdsfhfdh"},
+				{name: "test_channel1", identity: "fsfdsf"},
+				{name: "test_channel2", identity: "fdsfhfdh"},
 			},
 		},
 		dryrun: false,
diff --git a/tracing/opencensus.go b/tracing/opencensus.go
index 9a6586f47..fabf14e14 100644
--- a/tracing/opencensus.go
+++ b/tracing/opencensus.go
@@ -9,7 +9,7 @@ import (
 
 	"contrib.go.opencensus.io/exporter/stackdriver"
 	oczipkin "contrib.go.opencensus.io/exporter/zipkin"
-	"github.com/openzipkin/zipkin-go"
+	zipkin "github.com/openzipkin/zipkin-go"
 	httpreporter "github.com/openzipkin/zipkin-go/reporter/http"
 	"go.opencensus.io/trace"
 	"go.uber.org/zap"