diff --git a/build.gradle.kts b/build.gradle.kts
index 8fb4b04..34836c0 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
-    kotlin("jvm") version "1.8.0"
+    kotlin("jvm") version "2.3.20"
     application
-    id("io.gitlab.arturbosch.detekt") version "1.23.3"
+    id("dev.detekt") version("2.0.0-alpha.2")
 }
 
 group = "mate.academy"
@@ -20,7 +20,7 @@ tasks.test {
 }
 
 kotlin {
-    jvmToolchain(11)
+    jvmToolchain(25)
 }
 
 detekt {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a595206..ac57dd1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.2.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/src/main/kotlin/mate/academy/RemoveChars.kt b/src/main/kotlin/mate/academy/RemoveChars.kt
index 1b8c4a4..4d0160a 100644
--- a/src/main/kotlin/mate/academy/RemoveChars.kt
+++ b/src/main/kotlin/mate/academy/RemoveChars.kt
@@ -2,5 +2,5 @@ package mate.academy
 
 fun removeChars(str: String): String {
     // Implement this function
-    return ""
+    return if (str.length <= 2) "" else str.substring(1, str.length - 1)
 }