diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0d1a9928..c32ad20e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 1.5.21 (22 March 2023)
+- [#908](https://github.com/WireMock-Net/WireMock.Net/pull/908) - RequestBuilder : add WithBodyAsJson and WithBody (with IJsonConverter) [feature] contributed by [StefH](https://github.com/StefH)
+- [#911](https://github.com/WireMock-Net/WireMock.Net/pull/911) - Fixed QueryStringParser for UrlEncoded values [bug] contributed by [StefH](https://github.com/StefH)
+- [#901](https://github.com/WireMock-Net/WireMock.Net/issues/901) - Matching one form-urlencoded value [feature]
+
 # 1.5.20 (19 March 2023)
 - [#905](https://github.com/WireMock-Net/WireMock.Net/pull/905) - Add DeserializeFormUrl Encoded to the settings [feature] contributed by [StefH](https://github.com/StefH)
 - [#907](https://github.com/WireMock-Net/WireMock.Net/pull/907) - Fix issue with application/x-www-form-urlencoded and ExactMatcher [bug] contributed by [StefH](https://github.com/StefH)
@@ -6,7 +11,6 @@
 # 1.5.19 (17 March 2023)
 - [#903](https://github.com/WireMock-Net/WireMock.Net/pull/903) - Add WithBody with IDictionary (form-urlencoded values) [feature] contributed by [StefH](https://github.com/StefH)
 - [#904](https://github.com/WireMock-Net/WireMock.Net/pull/904) - Update Handlebars.Net.Helpers to 2.3.15 [feature] contributed by [StefH](https://github.com/StefH)
-- [#901](https://github.com/WireMock-Net/WireMock.Net/issues/901) - Matching one form-urlencoded value [feature]
 
 # 1.5.18 (09 March 2023)
 - [#893](https://github.com/WireMock-Net/WireMock.Net/pull/893) - Add 'Data' to response which can be used during transforming the response [feature] contributed by [StefH](https://github.com/StefH)
diff --git a/Directory.Build.props b/Directory.Build.props
index c1d8029d..96ee3b56 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.5.20</VersionPrefix>
+        <VersionPrefix>1.5.21</VersionPrefix>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/WireMock-Net/WireMock.Net</PackageProjectUrl>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
diff --git a/Generate-ReleaseNotes.cmd b/Generate-ReleaseNotes.cmd
index c49bf74a..149c3530 100644
--- a/Generate-ReleaseNotes.cmd
+++ b/Generate-ReleaseNotes.cmd
@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.5.20
+SET version=1.5.21
 
 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 c3271e21..031f0c05 100644
--- a/PackageReleaseNotes.txt
+++ b/PackageReleaseNotes.txt
@@ -1,6 +1,6 @@
-# 1.5.20 (19 March 2023)
-- #905 Add DeserializeFormUrl Encoded to the settings [feature]
-- #907 Fix issue with application/x-www-form-urlencoded and ExactMatcher [bug]
-- #906 Upgrade to 1.5.19 breaks a form data test [bug]
+# 1.5.21 (22 March 2023)
+- #908 RequestBuilder : add WithBodyAsJson and WithBody (with IJsonConverter) [feature]
+- #911 Fixed QueryStringParser for UrlEncoded values [bug]
+- #901 Matching one form-urlencoded value [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