diff --git a/lib/config/options/index.ts b/lib/config/options/index.ts
index 0e86cd742deae79916b44e1e71c0e4f056057666..bd4cf746e26fbd310e1b2a0c96689932ee12f1ee 100644
--- a/lib/config/options/index.ts
+++ b/lib/config/options/index.ts
@@ -373,7 +373,7 @@ const options: RenovateOptions[] = [
     description:
       'Change this value to override the default Renovate sidecar image.',
     type: 'string',
-    default: 'ghcr.io/containerbase/sidecar:9.25.0',
+    default: 'ghcr.io/containerbase/sidecar:9.26.0',
     globalOnly: true,
   },
   {