diff --git a/build.gradle.kts b/build.gradle.kts
index 6e97cdbac..61b6b2958 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("jvm") version "2.0.21"
+    kotlin("jvm") version "2.1.0-RC"
     jacoco
     id("org.sonarqube") version "5.1.0.4882"
     id("com.diffplug.spotless") version "6.12.0"
@@ -14,7 +14,7 @@ repositories {
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-stdlib:2.0.21")
+    implementation("org.jetbrains.kotlin:kotlin-stdlib:2.1.0-RC")
     testImplementation("org.junit.jupiter:junit-jupiter:[5.11.0,)")
     testImplementation("org.hamcrest:hamcrest-core:[2.2,)")
     testImplementation("org.zapodot:embedded-db-junit-jupiter:[2.2.0,)")
@@ -29,12 +29,12 @@ tasks.test {
 group = "com.github.javadev"
 version = "1.30-SNAPSHOT"
 description = "leetcode-in-kotlin"
-java.sourceCompatibility = JavaVersion.VERSION_11
-java.targetCompatibility = JavaVersion.VERSION_11
+java.sourceCompatibility = JavaVersion.VERSION_17
+java.targetCompatibility = JavaVersion.VERSION_17
 
 tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile> {
     compilerOptions {
-        jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_11)
+        jvmTarget.set(org.jetbrains.kotlin.gradle.dsl.JvmTarget.JVM_17)
     }
 }
 
diff --git a/pom-central.xml b/pom-central.xml
index 0487c8cbe..d31d88355 100644
--- a/pom-central.xml
+++ b/pom-central.xml
@@ -27,7 +27,7 @@
         <url>https://github.com/javadev/LeetCode-in-Kotlin</url>
     </scm>
     <properties>
-        <kotlin.version>2.0.21</kotlin.version>
+        <kotlin.version>2.1.0-RC</kotlin.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
     <ciManagement>
@@ -47,7 +47,7 @@
                 <artifactId>kotlin-maven-plugin</artifactId>
                 <version>${kotlin.version}</version>
                 <configuration>
-                    <jvmTarget>11</jvmTarget>
+                    <jvmTarget>17</jvmTarget>
                 </configuration>
                 <executions>
                     <execution>
@@ -74,7 +74,7 @@
                     <dependency>
                         <groupId>org.junit.jupiter</groupId>
                         <artifactId>junit-jupiter-engine</artifactId>
-                        <version>[5.11.0,)</version>
+                        <version>[5.11.3,)</version>
                     </dependency>
                 </dependencies>
             </plugin>
@@ -149,25 +149,25 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>[5.11.0,)</version>
+            <version>[5.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>[5.11.0,)</version>
+            <version>[5.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-launcher</artifactId>
-            <version>[1.11.0,)</version>
+            <version>[1.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
-            <version>[2.2,)</version>
+            <version>[3.0,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/pom.xml b/pom.xml
index 24bc8a0c7..6e4d2caef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
         <url>https://github.com/javadev/LeetCode-in-Kotlin</url>
     </scm>
     <properties>
-        <kotlin.version>2.0.21</kotlin.version>
+        <kotlin.version>2.1.0-RC</kotlin.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
     <ciManagement>
@@ -46,7 +46,7 @@
                 <artifactId>kotlin-maven-plugin</artifactId>
                 <version>${kotlin.version}</version>
                 <configuration>
-                    <jvmTarget>11</jvmTarget>
+                    <jvmTarget>17</jvmTarget>
                 </configuration>
                 <executions>
                     <execution>
@@ -73,7 +73,7 @@
                     <dependency>
                         <groupId>org.junit.jupiter</groupId>
                         <artifactId>junit-jupiter-engine</artifactId>
-                        <version>[5.11.0,)</version>
+                        <version>[5.11.3,)</version>
                     </dependency>
                 </dependencies>
             </plugin>
@@ -140,25 +140,25 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>[5.11.0,)</version>
+            <version>[5.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>[5.11.0,)</version>
+            <version>[5.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.platform</groupId>
             <artifactId>junit-platform-launcher</artifactId>
-            <version>[1.11.0,)</version>
+            <version>[1.11.3,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
             <artifactId>hamcrest-core</artifactId>
-            <version>[2.2,)</version>
+            <version>[3.0,)</version>
             <scope>test</scope>
         </dependency>
         <dependency>