diff --git a/lib/config/options/index.ts b/lib/config/options/index.ts
index e0ae5ed58ac390..42a9d739652297 100644
--- a/lib/config/options/index.ts
+++ b/lib/config/options/index.ts
@@ -371,7 +371,7 @@ const options: RenovateOptions[] = [
     description:
       'Change this value to override the default Renovate sidecar image.',
     type: 'string',
-    default: 'ghcr.io/containerbase/sidecar:9.20.2',
+    default: 'ghcr.io/containerbase/sidecar:9.20.3',
     globalOnly: true,
   },
   {