diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 98906d1..266f8ae 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,10 +1,10 @@
 [versions]
 tools = "0.10.4"
+kotlin = "1.5.31"
 atomicfu = "0.16.2"
 binary-compatibility-validator = "0.7.1"
 changelog = "1.3.0"
 dokka = "1.5.0"
-kotlin = "1.5.30"
 kotlin-jupyter = "0.10.0-227"
 kotlinx-benchmark = "0.3.1"
 kotlinx-cli = "0.3.2"
diff --git a/src/main/kotlin/ru/mipt/npm/gradle/internal/common.kt b/src/main/kotlin/ru/mipt/npm/gradle/internal/common.kt
index 3c6d337..b8c8f13 100644
--- a/src/main/kotlin/ru/mipt/npm/gradle/internal/common.kt
+++ b/src/main/kotlin/ru/mipt/npm/gradle/internal/common.kt
@@ -12,8 +12,8 @@ import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
 import org.jetbrains.kotlin.gradle.plugin.LanguageSettingsBuilder
 
 internal fun LanguageSettingsBuilder.applySettings() {
-    languageVersion = "1.5"
-    apiVersion = "1.5"
+    languageVersion = "1.6"
+    apiVersion = "1.6"
     progressiveMode = true
 
     optIn("kotlin.RequiresOptIn")