diff --git a/Chart.yaml b/Chart.yaml
index 8383ed9..6b67715 100644
--- a/Chart.yaml
+++ b/Chart.yaml
@@ -2,7 +2,7 @@ apiVersion: v2
 name: roundcube
 description: Helm chart for roundcube
 type: application
-version: 0.1.0
+version: "0.1.0"
 appVersion: "1.4.11-apache"
 icon: https://upload.wikimedia.org/wikipedia/commons/e/e3/Roundcube_logo_icon.svg
 
diff --git a/renovate.json b/renovate.json
new file mode 100644
index 0000000..264b8ba
--- /dev/null
+++ b/renovate.json
@@ -0,0 +1,19 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "automergeStrategy": "merge-commit",
+  "automergeType": "pr",
+  "assignees": [ "volker.raschek" ],
+  "regexManagers": [
+    {
+      "description": "Update container image reference",
+      "fileMatch": [
+        "^Chart\\.yaml$"
+      ],
+      "matchStrings": [
+        "appVersion: \"(?<currentValue>.*?)\"\\s+"
+      ],
+      "depNameTemplate": "docker.io/roundcube/roundcubemail",
+      "datasourceTemplate": "docker"
+    }
+  ]
+}
\ No newline at end of file