diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2b70e225e715a..79fd7d04eadae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -81,6 +81,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - Fix 'org.apache.hc.core5.http.ParseException: Invalid protocol version' under JDK 16+ ([#4827](https://github.com/opensearch-project/OpenSearch/pull/4827))
 - Fix compression support for h2c protocol ([#4944](https://github.com/opensearch-project/OpenSearch/pull/4944))
 - Don't over-allocate in HeapBufferedAsyncEntityConsumer in order to consume the response ([#9993](https://github.com/opensearch-project/OpenSearch/pull/9993))
+- Update supported version for max_shard_size parameter in Shrink API ([#11439](https://github.com/opensearch-project/OpenSearch/pull/11439))
 
 ### Security
 
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/40_max_shard_size.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/40_max_shard_size.yml
index 32ac11097d3dc..bac2898ccea1c 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/40_max_shard_size.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/40_max_shard_size.yml
@@ -4,8 +4,8 @@
   # number_of_shards for the target index.
 
   - skip:
-      version: " - 2.99.99"
-      reason: "only available in 3.0+"
+      version: " - 2.4.99"
+      reason: "max_shard_size was introduced in 2.5.0"
       features: allowed_warnings
 
   - do: