diff --git a/lib/config/options/index.ts b/lib/config/options/index.ts
index ac16016318a1add3cdaa5dfac474307c47ae2074..409b7474d2ed70791aa5cbed418f074b4b8ce207 100644
--- a/lib/config/options/index.ts
+++ b/lib/config/options/index.ts
@@ -516,7 +516,7 @@ const options: RenovateOptions[] = [
     description:
       'Change this value to override the default Renovate sidecar image.',
     type: 'string',
-    default: 'ghcr.io/containerbase/sidecar:13.5.3',
+    default: 'ghcr.io/containerbase/sidecar:13.5.5',
     globalOnly: true,
   },
   {