diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53c65b69..c47bc1a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 2.21.0 (28 October 2026)
+- [#1526](https://github.com/wiremock/WireMock.Net/pull/1526) - Update Scriban to 7.5.3 [dependencies] contributed by [StefH](https://github.com/StefH)
+- [#1525](https://github.com/wiremock/WireMock.Net/issues/1525) - High security vulnerability in Scriban package [security]
+
 # 2.20.0 (23 October 2026)
 - [#1516](https://github.com/wiremock/WireMock.Net/pull/1516) - Add ScribanRegistrationCallback to register custom Scriban functions [feature] contributed by [Quattordici](https://github.com/Quattordici)
 - [#1519](https://github.com/wiremock/WireMock.Net/pull/1519) - Bump MessagePack from 2.5.302 to 2.5.303 [dependencies] contributed by [StefH](https://github.com/StefH)
diff --git a/Directory.Build.props b/Directory.Build.props
index cfbd3f4f..63ed5490 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -4,7 +4,7 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <VersionPrefix>2.20.0</VersionPrefix>
+        <VersionPrefix>2.21.0</VersionPrefix>
         <PackageIcon>WireMock.Net-Logo.png</PackageIcon>
         <PackageProjectUrl>https://github.com/wiremock/WireMock.Net</PackageProjectUrl>
         <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
diff --git a/PackageReleaseNotes.txt b/PackageReleaseNotes.txt
index 1d78183c..0dedf329 100644
--- a/PackageReleaseNotes.txt
+++ b/PackageReleaseNotes.txt
@@ -1,9 +1,5 @@
-# 2.20.0 (23 October 2026)
-- #1516 Add ScribanRegistrationCallback to register custom Scriban functions [feature]
-- #1519 Bump MessagePack from 2.5.302 to 2.5.303 [dependencies]
-- #1521 Add near-miss diagnostics and request count/unmatched endpoints to the admin API [feature]
-- #1522 Downgrade JsonPath.Net from 3.0.2 to 2.2.0 to avoid Open Source Maintenance Fee issues [dependencies]
-- #1515 Allow registering custom Scriban functions (ScribanRegistrationCallback), like HandlebarsRegistrationCallback [feature]
-- #1520 json-everything sub-dependency now has Open Source Maintenance Fee [dependencies]
+# 2.21.0 (28 October 2026)
+- #1526 Update Scriban to 7.5.3 [dependencies]
+- #1525 High security vulnerability in Scriban package [security]
 
 The full release notes can be found here: https://github.com/wiremock/WireMock.Net/blob/master/CHANGELOG.md
\ No newline at end of file