diff --git a/CHANGELOG.md b/CHANGELOG.md
index f04211281..fb2849694 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 1.4.27 (17 November 2021)
+- [#678](https://github.com/WireMock-Net/WireMock.Net/pull/678) - Support RequestBody [feature] contributed by [leolplex](https://github.com/leolplex)
+- [#680](https://github.com/WireMock-Net/WireMock.Net/pull/680) - Support examples in properties [feature] contributed by [leolplex](https://github.com/leolplex)
+- [#681](https://github.com/WireMock-Net/WireMock.Net/pull/681) - Support enums in properties [feature] contributed by [leolplex](https://github.com/leolplex)
+
 # 1.4.26 (04 November 2021)
 - [#670](https://github.com/WireMock-Net/WireMock.Net/pull/670) - Improve method MapSchemaToObject to support array and object [feature] contributed by [leolplex](https://github.com/leolplex)
 - [#673](https://github.com/WireMock-Net/WireMock.Net/pull/673) - Support examples random data generation contributed by [leolplex](https://github.com/leolplex)
diff --git a/Directory.Build.props b/Directory.Build.props
index 7b489e985..804f0553c 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.4.26</VersionPrefix>
+        <VersionPrefix>1.4.27</VersionPrefix>
         <PackageReleaseNotes>See CHANGELOG.md</PackageReleaseNotes>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/WireMock-Net/WireMock.Net</PackageProjectUrl>
diff --git a/Generate-ReleaseNotes.cmd b/Generate-ReleaseNotes.cmd
index 6844afdf1..84994a183 100644
--- a/Generate-ReleaseNotes.cmd
+++ b/Generate-ReleaseNotes.cmd
@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.4.26
+SET version=1.4.27
 
 GitHubReleaseNotes --output CHANGELOG.md --skip-empty-releases --exclude-labels question invalid doc duplicate --version %version% --token %GH_TOKEN%
 
diff --git a/PackageReleaseNotes.txt b/PackageReleaseNotes.txt
index d42268410..af7262a91 100644
--- a/PackageReleaseNotes.txt
+++ b/PackageReleaseNotes.txt
@@ -1,7 +1,6 @@
-# 1.4.26 (04 November 2021)
-- #670 Improve method MapSchemaToObject to support array and object [feature]
-- #673 Support examples random data generation
-- #675 Support basepath from servers
-- #676 Fix random generate data in url no spaces [feature]
+# 1.4.27 (17 November 2021)
+- #678 Support RequestBody [feature]
+- #680 Support examples in properties [feature]
+- #681 Support enums in properties [feature]
 
 The full release notes can be found here: https://github.com/WireMock-Net/WireMock.Net/blob/master/CHANGELOG.md
\ No newline at end of file
diff --git a/src/WireMock.Net.OpenApiParser/Utils/ExampleValueGenerator.cs b/src/WireMock.Net.OpenApiParser/Utils/ExampleValueGenerator.cs
index d3512ddc2..a9073f878 100644
--- a/src/WireMock.Net.OpenApiParser/Utils/ExampleValueGenerator.cs
+++ b/src/WireMock.Net.OpenApiParser/Utils/ExampleValueGenerator.cs
@@ -1,7 +1,8 @@
-using System;
+using System;
 using System.Collections.Generic;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Models;
+using Stef.Validation;
 using WireMock.Net.OpenApiParser.Extensions;
 using WireMock.Net.OpenApiParser.Settings;
 using WireMock.Net.OpenApiParser.Types;
@@ -14,7 +15,8 @@ internal class ExampleValueGenerator
 
         public ExampleValueGenerator(WireMockOpenApiParserSettings settings)
         {
-            _settings = settings ?? throw new ArgumentNullException(nameof(settings));
+            _settings = Guard.NotNull(settings, nameof(settings));
+
             if (_settings.DynamicExamples)
             {
                 _settings.ExampleValues = new WireMockOpenApiParserDynamicExampleValues();
diff --git a/src/WireMock.Net.OpenApiParser/WireMock.Net.OpenApiParser.csproj b/src/WireMock.Net.OpenApiParser/WireMock.Net.OpenApiParser.csproj
index 0284b6b58..c2f045a63 100644
--- a/src/WireMock.Net.OpenApiParser/WireMock.Net.OpenApiParser.csproj
+++ b/src/WireMock.Net.OpenApiParser/WireMock.Net.OpenApiParser.csproj
@@ -22,11 +22,11 @@
 	<ItemGroup>
 		<PackageReference Include="Newtonsoft.Json" Version="11.0.2" />
 		<PackageReference Include="Microsoft.OpenApi.Readers" Version="1.2.3" />
-		<PackageReference Include="RamlToOpenApiConverter" Version="0.1.1" />
+		<PackageReference Include="RamlToOpenApiConverter" Version="0.4.3" />
 		<PackageReference Include="JetBrains.Annotations" Version="2020.1.0" PrivateAssets="All" />
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
 		<PackageReference Include="RandomDataGenerator.Net" Version="1.0.13" />
-		<PackageReference Include="Stef.Validation" Version="0.0.3" />
+		<PackageReference Include="Stef.Validation" Version="0.0.4" />
 	</ItemGroup>
 
 	<ItemGroup>