diff --git a/CryptoExchange.Net/CryptoExchange.Net.csproj b/CryptoExchange.Net/CryptoExchange.Net.csproj
index 037bcf1..bdd4c1a 100644
--- a/CryptoExchange.Net/CryptoExchange.Net.csproj
+++ b/CryptoExchange.Net/CryptoExchange.Net.csproj
@@ -6,16 +6,16 @@
     <PackageId>CryptoExchange.Net</PackageId>
     <Authors>JKorf</Authors>
     <Description>A base package for implementing cryptocurrency exchange API's</Description>
-    <PackageVersion>4.0.2</PackageVersion>
+    <PackageVersion>4.0.3</PackageVersion>
     <AssemblyVersion>4.0.0</AssemblyVersion>
-    <FileVersion>4.0.2</FileVersion>
+    <FileVersion>4.0.3</FileVersion>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <RepositoryType>git</RepositoryType>
     <RepositoryUrl>https://github.com/JKorf/CryptoExchange.Net.git</RepositoryUrl>
     <PackageProjectUrl>https://github.com/JKorf/CryptoExchange.Net</PackageProjectUrl>
     <NeutralLanguage>en</NeutralLanguage>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
-    <PackageReleaseNotes>4.0.2 - Fixed socket client continuing before the send/receive loops have been started, which could cause issues when doing concurrent connections</PackageReleaseNotes>
+    <PackageReleaseNotes>4.0.3 - Fix for concurrent sent socket issue</PackageReleaseNotes>
     <Nullable>enable</Nullable>
     <LangVersion>8.0</LangVersion>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
diff --git a/CryptoExchange.Net/CryptoExchange.Net.xml b/CryptoExchange.Net/CryptoExchange.Net.xml
index de29b82..f9a1a0f 100644
--- a/CryptoExchange.Net/CryptoExchange.Net.xml
+++ b/CryptoExchange.Net/CryptoExchange.Net.xml
@@ -3818,9 +3818,7 @@
         <member name="M:CryptoExchange.Net.Sockets.WebsocketFactory.CreateWebsocket(CryptoExchange.Net.Logging.Log,System.String,System.Collections.Generic.IDictionary{System.String,System.String},System.Collections.Generic.IDictionary{System.String,System.String})">
             <inheritdoc />
         </member>
-    </members>
-</doc>
-System.Diagnostics.CodeAnalysis.AllowNullAttribute">
+        <member name="T:System.Diagnostics.CodeAnalysis.AllowNullAttribute">
             <summary>
                 Specifies that <see langword="null"/> is allowed as an input even if the
                 corresponding type disallows it.
diff --git a/README.md b/README.md
index 3949567..94b256c 100644
--- a/README.md
+++ b/README.md
@@ -313,6 +313,9 @@ private void SomeMethod()
 ````
 
 ## Release notes
+* Version 4.0.3 - 20 Aug 2021
+    * Fix for concurrent sent socket issue
+
 * Version 4.0.2 - 20 Aug 2021
     * Fixed socket client continuing before the send/receive loops have been started, which could cause issues when doing concurrent connections