diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index c6a6955ca..751389532 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "3.5.2"
+  ".": "3.5.3"
 }
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a0a645e45..486479069 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [3.5.3](https://github.com/microsoft/OpenAPI.NET/compare/v3.5.2...v3.5.3) (2026-04-27)
+
+
+### Bug Fixes
+
+* null reference exception for boolean component schemas ([f97f91a](https://github.com/microsoft/OpenAPI.NET/commit/f97f91a9f785b88039968024d5d1f4af51332631))
+* null reference exception for boolean component schemas ([fe0b50a](https://github.com/microsoft/OpenAPI.NET/commit/fe0b50aae372e5b08625f888ae424f22da759cdf))
+* **schema:** support boolean schemas in deserializer for OpenAPI 3.1/3.2 ([05b44be](https://github.com/microsoft/OpenAPI.NET/commit/05b44beb9783f5bab1d8988b3cb916d0278d42ce))
+
+
+### Performance Improvements
+
+* **schema:** optimize boolean schema deserialization ([7316e3f](https://github.com/microsoft/OpenAPI.NET/commit/7316e3f0e7b9acc11bc1e0255d7ca33837a1bbdc))
+
 ## [3.5.2](https://github.com/microsoft/OpenAPI.NET/compare/v3.5.1...v3.5.2) (2026-04-14)
 
 
diff --git a/Directory.Build.props b/Directory.Build.props
index b96bcac56..86e5a6bf9 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>3.5.2</Version>
+    <Version>3.5.3</Version>
   </PropertyGroup>
   <!-- https://github.com/clairernovotny/DeterministicBuilds#deterministic-builds -->
   <PropertyGroup Condition="'$(TF_BUILD)' == 'true'">