diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e3d3052fe..e5225a10a 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "2.0.0-preview.27"
+  ".": "2.0.0-preview.28"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dba29db84..4780f3dbc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [2.0.0-preview.28](https://github.com/microsoft/OpenAPI.NET/compare/v2.0.0-preview.27...v2.0.0-preview.28) (2025-06-16)
+
+
+### Bug Fixes
+
+* sub-schema references are invalid ([92db49b](https://github.com/microsoft/OpenAPI.NET/commit/92db49b98ade782de3dec229936c100a1339b491))
+* sub-schema references are invalid ([75d1d2b](https://github.com/microsoft/OpenAPI.NET/commit/75d1d2b62a6fab3727047be5c0e10b9987ad9f37))
+
 ## [2.0.0-preview.27](https://github.com/microsoft/OpenAPI.NET/compare/v2.0.0-preview.26...v2.0.0-preview.27) (2025-06-13)
 
 
diff --git a/Directory.Build.props b/Directory.Build.props
index 1ef4dd134..a31f3a826 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>2.0.0-preview.27</Version>
+    <Version>2.0.0-preview.28</Version>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">