diff --git a/lib/config/options/index.ts b/lib/config/options/index.ts
index f917186c493c135f44a33ea71a4eed75be54ddfa..ada52234b5bacf879ebf064771196a2f6431bfb9 100644
--- a/lib/config/options/index.ts
+++ b/lib/config/options/index.ts
@@ -372,7 +372,7 @@ const options: RenovateOptions[] = [
     description:
       'Change this value to override the default Renovate sidecar image.',
     type: 'string',
-    default: 'ghcr.io/containerbase/sidecar:9.3.0',
+    default: 'ghcr.io/containerbase/sidecar:9.4.0',
     globalOnly: true,
   },
   {