diff --git a/charts/cert-manager/templates/webhook-deployment.yaml b/charts/cert-manager/templates/webhook-deployment.yaml
index 259a96c..043c4b1 100644
--- a/charts/cert-manager/templates/webhook-deployment.yaml
+++ b/charts/cert-manager/templates/webhook-deployment.yaml
@@ -146,10 +146,15 @@
           resources:
             {{- toYaml . | nindent 12 }}
           {{- end }}
-          {{- if .Values.webhook.config }}
+          {{- if or .Values.webhook.config .Values.webhook.volumeMounts }}
           volumeMounts:
+            {{- if .Values.webhook.config }}
             - name: config
               mountPath: /var/cert-manager/config
+            {{- end }}
+            {{- if .Values.webhook.volumeMounts }}
+            {{- toYaml .Values.webhook.volumeMounts | nindent 12 }}
+            {{- end }}
           {{- end }}
       {{- with .Values.webhook.nodeSelector }}
       nodeSelector:
@@ -167,9 +172,14 @@
       topologySpreadConstraints:
         {{- toYaml . | nindent 8 }}
       {{- end }}
-      {{- if .Values.webhook.config }}
+      {{- if or .Values.webhook.config .Values.webhook.volumes }}
       volumes:
+        {{- if .Values.webhook.config }}
         - name: config
           configMap:
             name: {{ include "webhook.fullname" . }}
+        {{- end }}
+        {{- if .Values.webhook.volumes }}
+        {{- toYaml .Values.webhook.volumes | nindent 8 }}
+        {{- end }}
       {{- end }}