diff --git a/src/go.mod b/src/go.mod
index 258bfe74..7771ad8a 100644
--- a/src/go.mod
+++ b/src/go.mod
@@ -22,7 +22,7 @@ require (
 	github.com/onsi/gomega v1.32.0
 	github.com/prometheus/client_golang v1.19.0
 	github.com/prometheus/client_model v0.6.1
-	github.com/prometheus/common v0.51.1
+	github.com/prometheus/common v0.52.2
 	github.com/prometheus/prometheus v2.13.1+incompatible // pinned
 	github.com/shirou/gopsutil/v3 v3.24.3
 	golang.org/x/net v0.22.0
diff --git a/src/go.sum b/src/go.sum
index 73103c27..86abe3a2 100644
--- a/src/go.sum
+++ b/src/go.sum
@@ -365,8 +365,8 @@ github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQy
 github.com/prometheus/common v0.0.0-20181126121408-4724e9255275/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
 github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
 github.com/prometheus/common v0.7.0/go.mod h1:DjGbpBbp5NYNiECxcL/VnbXCCaQpKd3tt26CguLLsqA=
-github.com/prometheus/common v0.51.1 h1:eIjN50Bwglz6a/c3hAgSMcofL3nD+nFQkV6Dd4DsQCw=
-github.com/prometheus/common v0.51.1/go.mod h1:lrWtQx+iDfn2mbH5GUzlH9TSHyfZpHkSiG1W7y3sF2Q=
+github.com/prometheus/common v0.52.2 h1:LW8Vk7BccEdONfrJBDffQGRtpSzi5CQaRZGtboOO2ck=
+github.com/prometheus/common v0.52.2/go.mod h1:lrWtQx+iDfn2mbH5GUzlH9TSHyfZpHkSiG1W7y3sF2Q=
 github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.0-20181204211112-1dc9a6cbc91a/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
 github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
diff --git a/src/vendor/github.com/prometheus/common/expfmt/decode.go b/src/vendor/github.com/prometheus/common/expfmt/decode.go
index b2b89b01..25cfaa21 100644
--- a/src/vendor/github.com/prometheus/common/expfmt/decode.go
+++ b/src/vendor/github.com/prometheus/common/expfmt/decode.go
@@ -75,14 +75,14 @@ func ResponseFormat(h http.Header) Format {
 func NewDecoder(r io.Reader, format Format) Decoder {
 	switch format.FormatType() {
 	case TypeProtoDelim:
-		return &protoDecoder{r: r}
+		return &protoDecoder{r: bufio.NewReader(r)}
 	}
 	return &textDecoder{r: r}
 }
 
 // protoDecoder implements the Decoder interface for protocol buffers.
 type protoDecoder struct {
-	r io.Reader
+	r protodelim.Reader
 }
 
 // Decode implements the Decoder interface.
@@ -90,7 +90,7 @@ func (d *protoDecoder) Decode(v *dto.MetricFamily) error {
 	opts := protodelim.UnmarshalOptions{
 		MaxSize: -1,
 	}
-	if err := opts.UnmarshalFrom(bufio.NewReader(d.r), v); err != nil {
+	if err := opts.UnmarshalFrom(d.r, v); err != nil {
 		return err
 	}
 	if !model.IsValidMetricName(model.LabelValue(v.GetName())) {
diff --git a/src/vendor/modules.txt b/src/vendor/modules.txt
index c83dc470..4780ef31 100644
--- a/src/vendor/modules.txt
+++ b/src/vendor/modules.txt
@@ -187,7 +187,7 @@ github.com/prometheus/client_golang/prometheus/promhttp
 # github.com/prometheus/client_model v0.6.1
 ## explicit; go 1.19
 github.com/prometheus/client_model/go
-# github.com/prometheus/common v0.51.1
+# github.com/prometheus/common v0.52.2
 ## explicit; go 1.21
 github.com/prometheus/common/expfmt
 github.com/prometheus/common/internal/bitbucket.org/ww/goautoneg