diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4d2b02b5e..3aedaf18b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.3.8"
+  ".": "2.3.9"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b8d1854c1..f97968659 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [2.3.9](https://github.com/microsoft/OpenAPI.NET/compare/v2.3.8...v2.3.9) (2025-11-06)
+
+
+### Bug Fixes
+
+* a bug where null sentinel value would appear in YAML documents ([0e864c7](https://github.com/microsoft/OpenAPI.NET/commit/0e864c73791b8610a95f06da9fbb44bfa1cf75a9))
+* a bug where null sentinel value would appear in YAML documents ([15618e1](https://github.com/microsoft/OpenAPI.NET/commit/15618e1f6a79874ae61dc31e3bcd5e1f3177d7ff))
+
 ## [2.3.8](https://github.com/microsoft/OpenAPI.NET/compare/v2.3.7...v2.3.8) (2025-10-27)
 
 
diff --git a/Directory.Build.props b/Directory.Build.props
index ea4943006..8ef14df8e 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -12,7 +12,7 @@
     <PackageProjectUrl>https://github.com/Microsoft/OpenAPI.NET</PackageProjectUrl>
     <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
     <PackageTags>OpenAPI .NET</PackageTags>
-    <Version>2.3.8</Version>
+    <Version>2.3.9</Version>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">