diff --git a/go.mod b/go.mod
index 0c51cb8c7..f27dd04ac 100644
--- a/go.mod
+++ b/go.mod
@@ -165,7 +165,7 @@ require (
 	github.com/prometheus-community/pro-bing v0.4.1
 	github.com/prometheus/client_golang v1.20.5
 	github.com/prometheus/client_model v0.6.1
-	github.com/prometheus/common v0.61.0
+	github.com/prometheus/common v0.62.0
 	github.com/prometheus/procfs v0.15.1
 	github.com/prometheus/prometheus v0.54.1
 	github.com/rabbitmq/amqp091-go v1.10.0
@@ -225,7 +225,7 @@ require (
 	google.golang.org/api v0.214.0
 	google.golang.org/genproto/googleapis/api v0.0.0-20241118233622-e639e219e697
 	google.golang.org/grpc v1.68.0
-	google.golang.org/protobuf v1.35.2
+	google.golang.org/protobuf v1.36.1
 	gopkg.in/gorethink/gorethink.v3 v3.0.5
 	gopkg.in/olivere/elastic.v5 v5.0.86
 	gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7
diff --git a/go.sum b/go.sum
index 98c253cf3..3fa6a3a60 100644
--- a/go.sum
+++ b/go.sum
@@ -2146,8 +2146,8 @@ github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7q
 github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.9.1/go.mod h1:yhUN8i9wzaXS3w1O07YhxHEBxD+W35wd8bs7vj7HSQ4=
-github.com/prometheus/common v0.61.0 h1:3gv/GThfX0cV2lpO7gkTUwZru38mxevy90Bj8YFSRQQ=
-github.com/prometheus/common v0.61.0/go.mod h1:zr29OCN/2BsJRaFwG8QOBr41D6kkchKbpeNH7pAjb/s=
+github.com/prometheus/common v0.62.0 h1:xasJaQlnWAeyHdUBeGjXmutelfJHWMRr+Fg4QszZ2Io=
+github.com/prometheus/common v0.62.0/go.mod h1:vyBcEuLSvWos9B1+CyL7JZ2up+uFzXhkqml0W5zIY1I=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
@@ -3333,8 +3333,8 @@ google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqw
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.29.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.36.1 h1:yBPeRvTftaleIgM3PZ/WBIZ7XM/eEYAaEyCwvyjq/gk=
+google.golang.org/protobuf v1.36.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
diff --git a/plugins/serializers/prometheus/convert.go b/plugins/serializers/prometheus/convert.go
index 178c0b9cb..146df1f98 100644
--- a/plugins/serializers/prometheus/convert.go
+++ b/plugins/serializers/prometheus/convert.go
@@ -98,7 +98,7 @@ func SanitizeMetricName(name string) (string, bool) {
 // not, it attempts to replaces invalid runes with an underscore to create a
 // valid name.
 func SanitizeLabelName(name string) (string, bool) {
-	if model.LabelName(name).IsValid() {
+	if model.LabelName(name).IsValidLegacy() {
 		return name, true
 	}
 	return sanitize(name, LabelNameTable)
diff --git a/plugins/serializers/prometheusremotewrite/prometheusremotewrite_test.go b/plugins/serializers/prometheusremotewrite/prometheusremotewrite_test.go
index 1eac455c9..be94b67f9 100644
--- a/plugins/serializers/prometheusremotewrite/prometheusremotewrite_test.go
+++ b/plugins/serializers/prometheusremotewrite/prometheusremotewrite_test.go
@@ -208,24 +208,19 @@ func TestRemoteWriteSerializeNegative(t *testing.T) {
 
 	assert := func(msg string, err error) {
 		t.Helper()
-		if err != nil {
-			t.Fatalf("unexpected error: %v", err)
-		}
+		require.NoError(t, err)
 
 		lastMsg := clog.LastError()
-		if lastMsg == "" {
-			t.Fatal("expected non-empty last message")
-		}
-		if !strings.Contains(lastMsg, msg) {
-			t.Fatalf("expected to have log message %q; got %q instead", msg, lastMsg)
-		}
+		require.NotEmpty(t, lastMsg, "expected non-empty last message")
+		require.Contains(t, lastMsg, msg, "unexpected log message")
+
 		// reset logger so it can be reused again
 		clog.Clear()
 	}
 
 	m := testutil.MustMetric("@@!!", nil, map[string]interface{}{"!!": "@@"}, time.Unix(0, 0))
 	_, err := s.Serialize(m)
-	assert("failed to parse metric name", err)
+	assert("failed to parse \"@@!!_!!\"", err)
 
 	m = testutil.MustMetric("prometheus", nil,
 		map[string]interface{}{