diff --git a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go
index 6705c72..3b6d4f9 100644
--- a/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go
+++ b/vendor/github.com/opencord/voltha-lib-go/v4/pkg/adapters/common/performance_metrics.go
@@ -48,6 +48,11 @@
 	}
 }
 
+// UpdateFrequency will update the frequency.
+func (pm *PmMetrics) UpdateFrequency(frequency uint32) {
+	pm.frequency = frequency
+}
+
 func Metrics(pmNames []string) PmMetricsOption {
 	return func(args *PmMetrics) {
 		args.metrics = make(map[string]*voltha.PmConfig)
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 2d33169..d0ec634 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -74,7 +74,7 @@
 # github.com/opencord/omci-lib-go v0.13.4
 github.com/opencord/omci-lib-go
 github.com/opencord/omci-lib-go/generated
-# github.com/opencord/voltha-lib-go/v4 v4.0.5
+# github.com/opencord/voltha-lib-go/v4 v4.0.6
 github.com/opencord/voltha-lib-go/v4/pkg/adapters
 github.com/opencord/voltha-lib-go/v4/pkg/adapters/adapterif
 github.com/opencord/voltha-lib-go/v4/pkg/adapters/common