diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ad3d2fc..e90bd06b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# 1.5.13 (11 December 2022)
+- [#858](https://github.com/WireMock-Net/WireMock.Net/pull/858) - Update Transformer functionality to return value instead of string [feature] contributed by [StefH](https://github.com/StefH)
+- [#859](https://github.com/WireMock-Net/WireMock.Net/pull/859) - Add UpdatedAt property to Mapping [feature] contributed by [StefH](https://github.com/StefH)
+- [#861](https://github.com/WireMock-Net/WireMock.Net/pull/861) - Add extra functionality for issue 55 contributed by [StefH](https://github.com/StefH)
+- [#862](https://github.com/WireMock-Net/WireMock.Net/pull/862) - Add client certificate support [feature] contributed by [billybraga](https://github.com/billybraga)
+- [#863](https://github.com/WireMock-Net/WireMock.Net/pull/863) - Update WireMockServer.CreateClient/CreateClients to include handlers [feature] contributed by [StefH](https://github.com/StefH)
+- [#856](https://github.com/WireMock-Net/WireMock.Net/issues/856) - Inconsistent result with overlapping (duplicate) request [bug]
+
 # 1.5.12 (03 December 2022)
 - [#851](https://github.com/WireMock-Net/WireMock.Net/pull/851) - Fix Linux CI build + Fix opencover [feature] contributed by [StefH](https://github.com/StefH)
 - [#853](https://github.com/WireMock-Net/WireMock.Net/pull/853) - Add .Net 7 [feature] contributed by [StefH](https://github.com/StefH)
@@ -915,6 +923,7 @@
 - [#45](https://github.com/WireMock-Net/WireMock.Net/pull/45) - Add RequestLogExpirationDuration and MaxRequestLogCount (#43) contributed by [StefH](https://github.com/StefH)
 - [#51](https://github.com/WireMock-Net/WireMock.Net/pull/51) - Observable logs contributed by [dmtrrk](https://github.com/dmtrrk)
 - [#15](https://github.com/WireMock-Net/WireMock.Net/issues/15) - New feature: Proxying [feature]
+- [#20](https://github.com/WireMock-Net/WireMock.Net/issues/20) - Add client certificate authentication [feature]
 - [#31](https://github.com/WireMock-Net/WireMock.Net/issues/31) - Feature request: Nuget package for standalone version [feature]
 - [#33](https://github.com/WireMock-Net/WireMock.Net/issues/33) - Issue with launching sample code (StandAlone server) [bug]
 - [#38](https://github.com/WireMock-Net/WireMock.Net/issues/38) - Bug: support also listening on *:{port}
diff --git a/Directory.Build.props b/Directory.Build.props
index fd9fd7b7..4c984209 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>1.5.12</VersionPrefix>
+        <VersionPrefix>1.5.13</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 4761c313..0b10e01a 100644
--- a/Generate-ReleaseNotes.cmd
+++ b/Generate-ReleaseNotes.cmd
@@ -1,6 +1,6 @@
 rem https://github.com/StefH/GitHubReleaseNotes
 
-SET version=1.5.12
+SET version=1.5.13
 
 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 aaf4ed77..f54139dc 100644
--- a/PackageReleaseNotes.txt
+++ b/PackageReleaseNotes.txt
@@ -1,7 +1,9 @@
-# 1.5.12 (03 December 2022)
-- #851 Fix Linux CI build + Fix opencover [feature]
-- #853 Add .Net 7 [feature]
-- #854 Fix logic for QueryParameterMultipleValueSupport [bug]
-- #857 Update some dependencies [feature]
+# 1.5.13 (11 December 2022)
+- #858 Update Transformer functionality to return value instead of string [feature]
+- #859 Add UpdatedAt property to Mapping [feature]
+- #861 Add extra functionality for issue 55
+- #862 Add client certificate support [feature]
+- #863 Update WireMockServer.CreateClient/CreateClients to include handlers [feature]
+- #856 Inconsistent result with overlapping (duplicate) request [bug]
 
 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