diff --git a/spec/rest-api/README.md b/spec/rest-api/README.md
index a523473..1bb9299 100644
--- a/spec/rest-api/README.md
+++ b/spec/rest-api/README.md
@@ -12,5 +12,5 @@ You can regenerate the files by building and running the [endpoint](../../endpoi
 | :---------------------------------------: | :--------: | ------------------------------------------------ |
 | [`1.0.0-beta1`](openapi-1.0.0-beta1.json) | 2022-06-16 | Initial version imported for comments and review |
 | [`1.0.0-beta2`](openapi-1.0.0-beta2.json) | 2023-01-06 | Updated version (incorporating Mikito Iwamasa's feedback. Thank you!) |
-| [`2.2.0-20240327`](openapi-2.2.0.json) | 2024-04-30 | Version 2.2.0 of the tech specs (reviewed) |
+| [`2.2.0-20240327`](openapi-2.2.0.json) | 2024-04-30 | Version 2.2.0 of the tech specs (contains bug fixed in [`openapi-2.2.1-wip.json`](openapi-2.2.1-wip.json)) |
 | [`2.2.1-20240514`](openapi-2.2.1-wip.json) | 2024-05-14 | Version 2.2.1 of these tech specs (reviewed) |