diff --git a/config/config.go b/config/config.go
index c72d128c56..a2c124de94 100644
--- a/config/config.go
+++ b/config/config.go
@@ -446,22 +446,28 @@ func (s ScrapeProtocol) Validate() error {
 var (
 	PrometheusProto      ScrapeProtocol = "PrometheusProto"
 	PrometheusText0_0_4  ScrapeProtocol = "PrometheusText0.0.4"
+	PrometheusText1_0_0  ScrapeProtocol = "PrometheusText1.0.0"
 	OpenMetricsText0_0_1 ScrapeProtocol = "OpenMetricsText0.0.1"
 	OpenMetricsText1_0_0 ScrapeProtocol = "OpenMetricsText1.0.0"
+	OpenMetricsText2_0_0 ScrapeProtocol = "OpenMetricsText2.0.0"
 	UTF8NamesHeader      string         = "validchars=utf8"
 
 	ScrapeProtocolsHeaders = map[ScrapeProtocol]string{
 		PrometheusProto:      "application/vnd.google.protobuf;proto=io.prometheus.client.MetricFamily;encoding=delimited",
 		PrometheusText0_0_4:  "text/plain;version=0.0.4",
+		PrometheusText1_0_0:  "text/plain;version=1_0_0",
 		OpenMetricsText0_0_1: "application/openmetrics-text;version=0.0.1",
 		OpenMetricsText1_0_0: "application/openmetrics-text;version=1.0.0",
+		OpenMetricsText2_0_0: "application/openmetrics-text;version=2.0.0",
 	}
 
 	// DefaultScrapeProtocols is the set of scrape protocols that will be proposed
 	// to scrape target, ordered by priority.
 	DefaultScrapeProtocols = []ScrapeProtocol{
+		OpenMetricsText2_0_0,
 		OpenMetricsText1_0_0,
 		OpenMetricsText0_0_1,
+		PrometheusText1_0_0,
 		PrometheusText0_0_4,
 	}
 
@@ -471,6 +477,7 @@ var (
 	// "native-histograms" and "created-timestamp-zero-ingestion".
 	DefaultProtoFirstScrapeProtocols = []ScrapeProtocol{
 		PrometheusProto,
+		OpenMetricsText2_0_0,
 		OpenMetricsText1_0_0,
 		OpenMetricsText0_0_1,
 		PrometheusText0_0_4,
diff --git a/scrape/scrape.go b/scrape/scrape.go
index 90ab344420..26be68c0a9 100644
--- a/scrape/scrape.go
+++ b/scrape/scrape.go
@@ -672,8 +672,8 @@ func acceptHeader(sps []config.ScrapeProtocol, allowUTF8Names bool) string {
 	weight := len(config.ScrapeProtocolsHeaders) + 1
 	for _, sp := range sps {
 		val := config.ScrapeProtocolsHeaders[sp]
-		if allowUTF8Names {
-			val += ";"+config.UTF8NamesHeader
+		if (sp != config.PrometheusProto || sp == config.OpenMetricsText2_0_0 || sp == config.PrometheusText1_0_0) && allowUTF8Names {
+			val += ";" + config.UTF8NamesHeader
 		}
 		val += fmt.Sprintf(";q=0.%d", weight)
 		vals = append(vals, val)
@@ -681,7 +681,9 @@ func acceptHeader(sps []config.ScrapeProtocol, allowUTF8Names bool) string {
 	}
 	// Default match anything.
 	vals = append(vals, fmt.Sprintf("*/*;q=0.%d", weight))
-	return strings.Join(vals, ",")
+	ret := strings.Join(vals, ",")
+	fmt.Println("~~~~~~~~~~~~~~~~~~~accept header", ret)
+	return ret
 }
 
 func acceptEncodingHeader(enableCompression bool) string {