diff --git a/openapi/components/schemas/InstanceRegion.yaml b/openapi/components/schemas/InstanceRegion.yaml
index 41d30b3f..9c2e843b 100644
--- a/openapi/components/schemas/InstanceRegion.yaml
+++ b/openapi/components/schemas/InstanceRegion.yaml
@@ -7,5 +7,6 @@ enum:
   - unknown
   - us
   - use
+  - usw
 default: us
 example: us