diff --git a/charts/actions-runner-controller/Chart.yaml b/charts/actions-runner-controller/Chart.yaml
index 60a41dd1..fe58d4d1 100644
--- a/charts/actions-runner-controller/Chart.yaml
+++ b/charts/actions-runner-controller/Chart.yaml
@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.5.0
+version: 0.5.1
 
 home: https://github.com/summerwind/actions-runner-controller
 
diff --git a/charts/actions-runner-controller/templates/_helpers.tpl b/charts/actions-runner-controller/templates/_helpers.tpl
index 425c5544..21482e39 100644
--- a/charts/actions-runner-controller/templates/_helpers.tpl
+++ b/charts/actions-runner-controller/templates/_helpers.tpl
@@ -85,11 +85,11 @@ Create the name of the service account to use
 {{- end }}
 
 {{- define "actions-runner-controller.webhookServiceName" -}}
-{{- include "actions-runner-controller.fullname" . }}-webhook
+{{- include "actions-runner-controller.fullname" . | trunc 55 }}-webhook
 {{- end }}
 
 {{- define "actions-runner-controller.authProxyServiceName" -}}
-{{- include "actions-runner-controller.fullname" . }}-metrics-service
+{{- include "actions-runner-controller.fullname" . | trunc 47 }}-metrics-service
 {{- end }}
 
 {{- define "actions-runner-controller.selfsignedIssuerName" -}}