diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index bf0d03617..3549461d9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.5.0"
+  ".": "3.5.1"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0cc37e18..265529627 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.5.1](https://github.com/microsoft/OpenAPI.NET/compare/v3.5.0...v3.5.1) (2026-03-31)
+
+
+### Bug Fixes
+
+* security scheme references serialization ([a5acb89](https://github.com/microsoft/OpenAPI.NET/commit/a5acb896cb46a58702c07bc742b5e114ba90f95a))
+
 ## [3.5.0](https://github.com/microsoft/OpenAPI.NET/compare/v3.4.0...v3.5.0) (2026-03-20)
 
 
diff --git a/Directory.Build.props b/Directory.Build.props
index 034c59b03..410c635e0 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>3.5.0</Version>
+    <Version>3.5.1</Version>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">