diff --git a/Chart.yaml b/Chart.yaml
index 2a0ec2c..823fb79 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -3,7 +3,7 @@ apiVersion: v2
 name: plausible-analytics
 description: A Helm Chart for Plausible Analytics - Simple, open-source, lightweight (< 1 KB) and privacy-friendly web analytics alternative to Google Analytics.
 type: application
-version: 0.4.0
+version: 0.4.1
 appVersion: 3.0.1
 keywords:
   - web analytics
diff --git a/templates/deployment.yaml b/templates/deployment.yaml
index e6853a7..29de9a4 100644
--- a/templates/deployment.yaml
+++ b/templates/deployment.yaml
@@ -42,6 +42,9 @@ spec:
               - key: DATABASE_CA
                 path: database-ca.pem
         {{- end }}
+        {{- with .Values.extraVolumes }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
       {{- if .Values.plausibleInitContainers.enabled }}
       initContainers:
         - name: wait-for-postgres
@@ -56,6 +59,11 @@ spec:
           volumeMounts:
             - name: scripts-volume
               mountPath: /scripts
+            {{- if .Values.databaseCA }}
+            - name: database-ca
+              mountPath: /etc/ssl/certs/plausible/
+              readOnly: true
+            {{- end }}
         {{- if not .Values.plausibleInitContainers.curl.enabled }}
         - name: wait-for-clickhouse
           image: "{{ .Values.plausibleInitContainers.clickhouse.image.repository }}:{{ .Values.plausibleInitContainers.clickhouse.image.tag | default "latest" }}"
@@ -81,11 +89,6 @@ spec:
           volumeMounts:
             - name: scripts-volume
               mountPath: /scripts
-            {{- if .Values.databaseCA }}
-            - name: database-ca
-              mountPath: /etc/ssl/certs/plausible/
-              readOnly: true
-            {{- end }}
       {{- end }}
       containers:
         - name: {{ .Chart.Name }}
@@ -104,6 +107,9 @@ spec:
               mountPath: /etc/ssl/certs/plausible/
               readOnly: true
             {{- end }}
+            {{- with .Values.extraVolumeMounts }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
           env:
             {{- if .Values.baseURL }}
             - name: BASE_URL
diff --git a/values.yaml b/values.yaml
index 6ebed9d..115dc21 100644
--- a/values.yaml
+++ b/values.yaml
@@ -233,3 +233,18 @@ affinity: {}
 
 ## Extra environment variables definition
 extraEnv: []
+
+## Extra volumes definition
+## Refer to ".spec.volumes" specification : https://kubernetes.io/docs/concepts/storage/volumes/
+extraVolumes: []
+# - name: my_volume
+#   secret:
+#     secretName: my_secret
+#     optional: false
+
+## Extra volumes mounts' definition
+## Refer to ".spec.containers.volumeMounts" specification : https://kubernetes.io/docs/concepts/storage/volumes/
+extraVolumeMounts: []
+# - name: mounted_secret
+#   mountPath: "/etc/mounted_secret"
+#   readOnly: true