diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 8c42516a1b2..757cee3ccf9 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "5.90.0-preview"
+    ".": "5.91.0-preview"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bb6bde9d42b..e8f4eccaf68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project does NOT adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html) and packages shipped from the beta service library will always be in `preview` as changes to the API are for non production use and commonly ship breaking changes.
 
 
+## [5.91.0-preview](https://github.com/microsoftgraph/msgraph-beta-sdk-dotnet/compare/5.90.0-preview...5.91.0-preview) (2024-12-18)
+
+
+### Features
+
+* **generation:** update request builders and models ([f2a6de6](https://github.com/microsoftgraph/msgraph-beta-sdk-dotnet/commit/f2a6de6292b4bf0c7cc7a8128df0b69e89f7acd5))
+
 ## [5.90.0-preview](https://github.com/microsoftgraph/msgraph-beta-sdk-dotnet/compare/5.89.0-preview...5.90.0-preview) (2024-12-11)
 
 
diff --git a/src/Microsoft.Graph/Microsoft.Graph.Beta.csproj b/src/Microsoft.Graph/Microsoft.Graph.Beta.csproj
index 46bffefbbbf..8f50ef516d0 100644
--- a/src/Microsoft.Graph/Microsoft.Graph.Beta.csproj
+++ b/src/Microsoft.Graph/Microsoft.Graph.Beta.csproj
@@ -27,7 +27,7 @@
     </PackageReleaseNotes>
     <!-- edit this value to change the current major.minor.patch version -->
     <!-- x-release-please-start-version -->
-    <Version>5.90.0-preview</Version>
+    <Version>5.91.0-preview</Version>
     <!-- x-release-please-end -->
     <!-- adds a version suffix if the Prerelease environment variable is set. BUILD_BUILDID is an
     environment variable set by Azure pipelines from the build. We can use the buildid to correlate