update
diff --git a/charts/cert-manager-1.20.3/templates/podmonitor.yaml b/charts/cert-manager-1.20.3/templates/podmonitor.yaml
new file mode 100644
index 0000000..72d2dfe
--- /dev/null
+++ b/charts/cert-manager-1.20.3/templates/podmonitor.yaml
@@ -0,0 +1,63 @@
+{{- if and .Values.prometheus.enabled (and .Values.prometheus.podmonitor.enabled .Values.prometheus.servicemonitor.enabled) }}
+{{- fail "Either .Values.prometheus.podmonitor.enabled or .Values.prometheus.servicemonitor.enabled can be enabled at a time, but not both." }}
+{{- else if and .Values.prometheus.enabled .Values.prometheus.podmonitor.enabled }}
+apiVersion: monitoring.coreos.com/v1
+kind: PodMonitor
+metadata:
+  name: {{ template "cert-manager.fullname" . }}
+{{- if .Values.prometheus.podmonitor.namespace }}
+  namespace: {{ .Values.prometheus.podmonitor.namespace }}
+{{- else }}
+  namespace: {{ include "cert-manager.namespace" . }}
+{{- end }}
+  labels:
+    app: {{ include "cert-manager.name" . }}
+    app.kubernetes.io/name: {{ include "cert-manager.name" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/component: "controller"
+    {{- include "labels" . | nindent 4 }}
+    prometheus: {{ .Values.prometheus.podmonitor.prometheusInstance }}
+    {{- with .Values.prometheus.podmonitor.labels }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+{{- if .Values.prometheus.podmonitor.annotations }}
+  annotations:
+    {{- with .Values.prometheus.podmonitor.annotations }}
+    {{- toYaml . | nindent 4 }}
+    {{- end }}
+{{- end }}
+spec:
+  jobLabel: app.kubernetes.io/name
+  selector:
+    matchExpressions:
+      - key: app.kubernetes.io/name
+        operator: In
+        values:
+        - {{ include "cainjector.name" . }}
+        - {{ template "cert-manager.name" . }}
+        - {{ include "webhook.name" . }}
+      - key: app.kubernetes.io/instance
+        operator: In
+        values:
+        - {{ .Release.Name }}
+      - key: app.kubernetes.io/component
+        operator: In
+        values:
+        - cainjector
+        - controller
+        - webhook
+{{- if .Values.prometheus.podmonitor.namespace }}
+  namespaceSelector:
+    matchNames:
+      - {{ include "cert-manager.namespace" . }}
+{{- end }}
+  podMetricsEndpoints:
+    - port: http-metrics
+      path: {{ .Values.prometheus.podmonitor.path }}
+      interval: {{ .Values.prometheus.podmonitor.interval }}
+      scrapeTimeout: {{ .Values.prometheus.podmonitor.scrapeTimeout }}
+      honorLabels: {{ .Values.prometheus.podmonitor.honorLabels }}
+      {{- with .Values.prometheus.podmonitor.endpointAdditionalProperties }}
+      {{- toYaml . | nindent 6 }}
+      {{- end }}
+{{- end }}