diff --git a/CHANGELOG.md b/CHANGELOG.md
index ce78b8baae..81b0680a90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 ### Fixed
 - Fixed `HttpConnection.ConvertHttpMethod` to support `Patch` method ([#489](https://github.com/opensearch-project/opensearch-net/pull/489))
 - Fixed `IEnumerable<int?>` property mapping. ([#503](https://github.com/opensearch-project/opensearch-net/pull/503))
+- Fixed `ConnectionConfiguration.DefaultMemoryStreamFactory` actually used as default. ([#552](https://github.com/opensearch-project/opensearch-net/pull/552))
 
 ### Dependencies
 - Bumps `Microsoft.CodeAnalysis.CSharp` from 4.2.0 to 4.6.0
diff --git a/src/OpenSearch.Net/Configuration/ConnectionConfiguration.cs b/src/OpenSearch.Net/Configuration/ConnectionConfiguration.cs
index 9b9e13ca2c..956da2ecc5 100644
--- a/src/OpenSearch.Net/Configuration/ConnectionConfiguration.cs
+++ b/src/OpenSearch.Net/Configuration/ConnectionConfiguration.cs
@@ -192,9 +192,8 @@ public abstract class ConnectionConfiguration<T> : IConnectionConfigurationValue
 		private bool _sniffOnStartup;
 		private bool _throwExceptions;
 		private bool _transferEncodingChunked;
-		private IMemoryStreamFactory _memoryStreamFactory = RecyclableMemoryStreamFactory.Default;
+		private IMemoryStreamFactory _memoryStreamFactory = DefaultMemoryStreamFactory;
 		private bool _enableTcpStats;
-		//public static IMemoryStreamFactory Default { get; } = RecyclableMemoryStreamFactory.Default;
 		public static IMemoryStreamFactory DefaultMemoryStreamFactory { get; } = OpenSearch.Net.MemoryStreamFactory.Default;
 		private bool _enableThreadPoolStats;
 
@@ -615,7 +614,7 @@ public T SkipDeserializationForStatusCodes(params int[] statusCodes) =>
 		public T TransferEncodingChunked(bool transferEncodingChunked = true) => Assign(transferEncodingChunked, (a, v) => a._transferEncodingChunked = v);
 
 		/// <summary>
-		/// The memory stream factory to use, defaults to <see cref="RecyclableMemoryStreamFactory.Default"/>
+		/// The memory stream factory to use, defaults to <see cref="MemoryStreamFactory.Default"/>
 		/// </summary>
 		public T MemoryStreamFactory(IMemoryStreamFactory memoryStreamFactory) => Assign(memoryStreamFactory, (a, v) => a._memoryStreamFactory = v);