diff --git a/go.mod b/go.mod
index 6e3a43c9d1044..b9408d3773f1d 100644
--- a/go.mod
+++ b/go.mod
@@ -35,11 +35,11 @@ require (
 	github.com/spf13/cobra v1.10.2
 	github.com/spf13/pflag v1.0.10
 	go.opencensus.io v0.24.0
+	go.yaml.in/yaml/v3 v3.0.4
 	golang.org/x/tools v0.48.0
 	google.golang.org/grpc v1.83.0
 	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.6.2
 	google.golang.org/protobuf v1.36.12-0.20260120151049-f2248ac996af
-	gopkg.in/yaml.v2 v2.4.0
 	helm.sh/helm/v3 v3.21.3
 	k8s.io/api v0.36.3
 	k8s.io/apiextensions-apiserver v0.36.3
@@ -133,7 +133,6 @@ require (
 	go.opentelemetry.io/otel v1.44.0 // indirect
 	go.opentelemetry.io/otel/trace v1.44.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.4 // indirect
-	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/crypto v0.54.0 // indirect
 	golang.org/x/mod v0.38.0 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
diff --git a/testutil/test_data_diff.go b/testutil/test_data_diff.go
index b3acb2dd5c7d8..d3725913a291e 100644
--- a/testutil/test_data_diff.go
+++ b/testutil/test_data_diff.go
@@ -12,7 +12,7 @@ import (
 
 	"github.com/go-test/deep"
 	"github.com/sergi/go-diff/diffmatchpatch"
-	"gopkg.in/yaml.v2"
+	"go.yaml.in/yaml/v3"
 )
 
 // TestDataDiffer holds configuration for generating test diff
diff --git a/viz/metrics-api/grpc_server.go b/viz/metrics-api/grpc_server.go
index 5a30f7a7a6a13..0da71b81702e0 100644
--- a/viz/metrics-api/grpc_server.go
+++ b/viz/metrics-api/grpc_server.go
@@ -14,8 +14,8 @@ import (
 	"github.com/linkerd/linkerd2/viz/metrics-api/util"
 	promv1 "github.com/prometheus/client_golang/api/prometheus/v1"
 	log "github.com/sirupsen/logrus"
+	"go.yaml.in/yaml/v3"
 	"google.golang.org/grpc"
-	"gopkg.in/yaml.v2"
 	corev1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/labels"
 )
@@ -56,7 +56,6 @@ func NewGrpcServer(
 	clusterDomain string,
 	ignoredNamespaces []string,
 ) *grpc.Server {
-
 	server := &grpcServer{
 		prometheusAPI:       promAPI,
 		k8sAPI:              k8sAPI,