diff --git a/.gitignore b/.gitignore
index 0e47a00d49..d344e95940 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 .idea
+.kotlin
 out/*
 *.iml
 target
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index ae72b5fdf6..a014a1cd61 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,7 +1,7 @@
 [versions]
 
-kotlin = "1.9.23"
-kotlin-serialization = "1.6.3"
+kotlin = "2.0.0"
+kotlin-serialization = "1.7.1"
 kotlin-coroutines = "1.8.1"
 
 javax-activation = "1.1.1"
@@ -10,10 +10,10 @@ korlibs = "5.4.0"
 uuid = "0.8.4"
 ktor = "2.3.11"
 
-ksp = "1.9.23-1.0.20"
-kotlin-poet = "1.16.0"
+ksp = "2.0.0-1.0.23"
+kotlin-poet = "1.18.0"
 
-microutils = "0.21.2"
+microutils = "0.22.0"
 kslog = "1.3.4"
 
 versions = "0.51.0"
diff --git a/mppJsProject.gradle b/mppJsProject.gradle
index f7499b3c3b..5e0b8b40e3 100644
--- a/mppJsProject.gradle
+++ b/mppJsProject.gradle
@@ -25,7 +25,6 @@ kotlin {
         jsTest {
             dependencies {
                 implementation libs.kotlin.test.js
-                implementation libs.kotlin.test.junit
             }
         }
     }
diff --git a/mppProjectWithSerialization.gradle b/mppProjectWithSerialization.gradle
index aca28aecce..0f22c297ec 100644
--- a/mppProjectWithSerialization.gradle
+++ b/mppProjectWithSerialization.gradle
@@ -38,7 +38,6 @@ kotlin {
         jsTest {
             dependencies {
                 implementation libs.kotlin.test.js
-                implementation libs.kotlin.test.junit
             }
         }
         all {
diff --git a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/KeyboardButtonRequestUsers.kt b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/KeyboardButtonRequestUsers.kt
index 5aa0860985..e84a480e0d 100644
--- a/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/KeyboardButtonRequestUsers.kt
+++ b/tgbotapi.core/src/commonMain/kotlin/dev/inmo/tgbotapi/types/buttons/KeyboardButtonRequestUsers.kt
@@ -83,7 +83,6 @@ sealed interface KeyboardButtonRequestUsers {
             get() = null
     }
 
-    @Serializer(KeyboardButtonRequestUsers::class)
     companion object : KSerializer<KeyboardButtonRequestUsers> {
         @Serializable
         private data class Surrogate(