diff --git a/test/fixtures/stacks/catalog/aurora-postgres.yaml b/test/fixtures/stacks/catalog/aurora-postgres.yaml
index 3a186de..40f917e 100644
--- a/test/fixtures/stacks/catalog/aurora-postgres.yaml
+++ b/test/fixtures/stacks/catalog/aurora-postgres.yaml
@@ -20,7 +20,7 @@ components:
         # Serverless v2 configuration
         engine_mode: provisioned
         instance_type: "db.serverless" # serverless engine_mode ignores `var.instance_type`
-        engine_version: "13.22" # Latest supported version as of 08/28/2023
+        engine_version: "13.21" # Latest supported version as of 10/08/2025
         cluster_family: aurora-postgresql13
         cluster_size: 1
          # serverless