diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 44204dd0..627fb5f1 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "1.9.0"
+    ".": "1.9.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4138d411..6ee27d16 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.9.1](https://github.com/microsoft/kiota-java/compare/v1.9.0...v1.9.1) (2026-03-02)
+
+
+### Bug Fixes
+
+* check for port changes on redirect ([5746c34](https://github.com/microsoft/kiota-java/commit/5746c345691d550ee2373c1f217aad37f1bb6c38))
+* **security:** vulnerability where all headers are passed on redirect ([38e45c9](https://github.com/microsoft/kiota-java/commit/38e45c916dc2f7d883d80af25812d927bee3c9e4))
+
 ## [1.9.0](https://github.com/microsoft/kiota-java/compare/v1.8.12...v1.9.0) (2025-11-20)
 
 
diff --git a/README.md b/README.md
index cf5d288f..f3a9084f 100644
--- a/README.md
+++ b/README.md
@@ -22,28 +22,28 @@ In `build.gradle` in the `dependencies` section:
 
 ```Groovy
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-abstractions:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-abstractions:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-authentication-azure:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-authentication-azure:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-http-okHttp:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-http-okHttp:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-serialization-json:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-serialization-json:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-serialization-text:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-serialization-text:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-serialization-form:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-serialization-form:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-serialization-multipart:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-serialization-multipart:1.9.1'
 // x-release-please-end
 // x-release-please-start-version
-implementation 'com.microsoft.kiota:microsoft-kiota-bundle:1.9.0'
+implementation 'com.microsoft.kiota:microsoft-kiota-bundle:1.9.1'
 // x-release-please-end
 implementation 'jakarta.annotation:jakarta.annotation-api:2.1.1'
 ```
@@ -57,49 +57,49 @@ In `pom.xml` in the `dependencies` section:
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-abstractions</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-authentication-azure</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-http-okHttp</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-serialization-json</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-serialization-text</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-serialization-form</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
       <groupId>com.microsoft.kiota</groupId>
       <artifactId>microsoft-kiota-serialization-multipart</artifactId>
       <!--x-release-please-start-version-->
-      <version>1.9.0</version>
+      <version>1.9.1</version>
       <!--x-release-please-end-->
     </dependency>
     <dependency>
diff --git a/components/http/okHttp/src/main/java/com/microsoft/kiota/http/middleware/options/UserAgentHandlerOption.java b/components/http/okHttp/src/main/java/com/microsoft/kiota/http/middleware/options/UserAgentHandlerOption.java
index 7e70dce3..50a371bc 100644
--- a/components/http/okHttp/src/main/java/com/microsoft/kiota/http/middleware/options/UserAgentHandlerOption.java
+++ b/components/http/okHttp/src/main/java/com/microsoft/kiota/http/middleware/options/UserAgentHandlerOption.java
@@ -13,7 +13,7 @@ public UserAgentHandlerOption() {}
 
     private boolean enabled = true;
     @Nonnull private String productName = "kiota-java";
-    @Nonnull private String productVersion = "1.9.0"; // x-release-please-version
+    @Nonnull private String productVersion = "1.9.1"; // x-release-please-version
 
     /**
      * Gets the product name to be used in the user agent header
diff --git a/gradle.properties b/gradle.properties
index 5414a0bc..c79d1df8 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -31,7 +31,7 @@ mavenMajorVersion = 1
 mavenMinorVersion = 9
 # x-release-please-end
 # x-release-please-start-patch
-mavenPatchVersion = 0
+mavenPatchVersion = 1
 # x-release-please-end
 mavenArtifactSuffix =