diff --git a/lib/config/options/index.ts b/lib/config/options/index.ts
index 8310f685b9648187d0aa5be9f4fdbacc7df06293..db79053add6c9900ddd1da189351fea40d6e9ed7 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:13.4.2',
+    default: 'ghcr.io/containerbase/sidecar:13.4.3',
     globalOnly: true,
   },
   {