diff --git a/go.mod b/go.mod
index 2699cf8..afe7d35 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/alecthomas/kingpin/v2 v2.4.0
 	github.com/gorilla/mux v1.8.1
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.20.3
+	github.com/prometheus/client_golang v1.20.4
 	github.com/prometheus/common v0.59.1
 	github.com/sirupsen/logrus v1.9.3
 	golang.org/x/mod v0.21.0
diff --git a/go.sum b/go.sum
index 051d40b..6764937 100644
--- a/go.sum
+++ b/go.sum
@@ -57,8 +57,8 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v1.20.3 h1:oPksm4K8B+Vt35tUhw6GbSNSgVlVSBH0qELP/7u83l4=
-github.com/prometheus/client_golang v1.20.3/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
+github.com/prometheus/client_golang v1.20.4 h1:Tgh3Yr67PaOv/uTqloMsCEdeuFTatm5zIq5+qNN23vI=
+github.com/prometheus/client_golang v1.20.4/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE=
 github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E=
 github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY=
 github.com/prometheus/common v0.59.1 h1:LXb1quJHWm1P6wq/U824uxYi4Sg0oGvNeUm1z5dJoX0=
diff --git a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go
index 8a4f49a..519db34 100644
--- a/vendor/github.com/prometheus/client_golang/prometheus/histogram.go
+++ b/vendor/github.com/prometheus/client_golang/prometheus/histogram.go
@@ -844,9 +844,7 @@ func (h *histogram) Write(out *dto.Metric) error {
 			}}
 		}
 
-		// If exemplars are not configured, the cap will be 0.
-		// So append is not needed in this case.
-		if cap(h.nativeExemplars.exemplars) > 0 {
+		if h.nativeExemplars.isEnabled() {
 			h.nativeExemplars.Lock()
 			his.Exemplars = append(his.Exemplars, h.nativeExemplars.exemplars...)
 			h.nativeExemplars.Unlock()
@@ -1665,6 +1663,10 @@ type nativeExemplars struct {
 	exemplars []*dto.Exemplar
 }
 
+func (n *nativeExemplars) isEnabled() bool {
+	return n.ttl != -1
+}
+
 func makeNativeExemplars(ttl time.Duration, maxCount int) nativeExemplars {
 	if ttl == 0 {
 		ttl = 5 * time.Minute
@@ -1686,7 +1688,7 @@ func makeNativeExemplars(ttl time.Duration, maxCount int) nativeExemplars {
 }
 
 func (n *nativeExemplars) addExemplar(e *dto.Exemplar) {
-	if n.ttl == -1 {
+	if !n.isEnabled() {
 		return
 	}
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index a90d165..6df8ce1 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -52,7 +52,7 @@ github.com/munnerz/goautoneg
 # github.com/pkg/errors v0.9.1
 ## explicit
 github.com/pkg/errors
-# github.com/prometheus/client_golang v1.20.3
+# github.com/prometheus/client_golang v1.20.4
 ## explicit; go 1.20
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil
 github.com/prometheus/client_golang/internal/github.com/golang/gddo/httputil/header