diff --git a/.github/workflows/test-main.yml b/.github/workflows/test-main.yml
index 850f48e..18dcbaa 100644
--- a/.github/workflows/test-main.yml
+++ b/.github/workflows/test-main.yml
@@ -35,23 +35,23 @@ jobs:
       fail-fast: false
       matrix:
         # LTS versions, latest version (if exists)
-        java-version: [ '8', '11', '17', '21' ]
+        java-version: [ '8', '11', '17', '21', '22' ]
         # Minimum version, latest release version, latest pre-release version (if exists)
         kotlin:
           - name: '1.8.22'
             version: '1.8.22'
             k2: false
-          - name: '1.9.21'
-            version: '1.9.21'
+          - name: '1.9.23'
+            version: '1.9.23'
             k2: false
-          - name: '1.9.21 K2'
-            version: '1.9.21'
+          - name: '1.9.23 K2'
+            version: '1.9.23'
             k2: true
-          - name: '2.0.0-Beta3'
-            version: '2.0.0-Beta3'
+          - name: '2.0.0-Beta5'
+            version: '2.0.0-Beta5'
             k2: false
-          - name: '2.0.0-Beta3 K2'
-            version: '2.0.0-Beta3'
+          - name: '2.0.0-Beta5 K2'
+            version: '2.0.0-Beta5'
             k2: true
     env:
       KOTLIN_VERSION: ${{ matrix.kotlin.version }}
diff --git a/build.gradle.kts b/build.gradle.kts
index 8673ad9..3efde60 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -16,7 +16,7 @@ val jacksonVersion = libs.versions.jackson.get()
 val generatedSrcPath = "${layout.buildDirectory.get()}/generated/kotlin"
 
 group = groupStr
-version = "${jacksonVersion}-beta12"
+version = "${jacksonVersion}-beta13"
 
 repositories {
     mavenCentral()
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 8228bfe..4736f22 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,6 +1,6 @@
 [versions]
 kotlin = "1.8.22" # Mainly for CI, it can be rewritten by environment variable.
-jackson = "2.17.0"
+jackson = "2.17.1"
 
 # test libs
 junit = "5.10.2"
diff --git a/src/main/kotlin/io/github/projectmapk/jackson/module/kogera/JmClass.kt b/src/main/kotlin/io/github/projectmapk/jackson/module/kogera/JmClass.kt
index 0bceedc..6392175 100644
--- a/src/main/kotlin/io/github/projectmapk/jackson/module/kogera/JmClass.kt
+++ b/src/main/kotlin/io/github/projectmapk/jackson/module/kogera/JmClass.kt
@@ -1,6 +1,3 @@
-// Visitor API has already been deprecated, but the error is being suppressed for now.
-@file:Suppress("DEPRECATION_ERROR")
-
 package io.github.projectmapk.jackson.module.kogera
 
 import kotlinx.metadata.ClassKind
@@ -12,10 +9,10 @@ import kotlinx.metadata.KmProperty
 import kotlinx.metadata.KmType
 import kotlinx.metadata.jvm.getterSignature
 import kotlinx.metadata.jvm.signature
+import kotlinx.metadata.kind
 import java.lang.reflect.Constructor
 import java.lang.reflect.Field
 import java.lang.reflect.Method
-import kotlinx.metadata.internal.metadata.deserialization.Flags as ProtoFlags
 
 // Jackson Metadata Class
 internal sealed interface JmClass {
@@ -61,7 +58,7 @@ private class JmClassImpl(
     override val properties: List<KmProperty>
 
     private val companionPropName: String? = kmClass.companionObject
-    override val kind: ClassKind = ClassKind.values()[ProtoFlags.CLASS_KIND.get(kmClass.flags).number]
+    override val kind: ClassKind = kmClass.kind
     override val constructors: List<KmConstructor> = kmClass.constructors
     override val sealedSubclasses: List<ClassName> = kmClass.sealedSubclasses
     override val inlineClassUnderlyingType: KmType? = kmClass.inlineClassUnderlyingType