diff --git a/gradle.properties b/gradle.properties
index 2a618792aba..599849265f0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ org.gradle.caching=true
 org.gradle.java.installations.fromEnv=JDK_16,JDK_17,JDK_18,JDK_9,JDK_10,JDK_11,JDK_15
 
 cacheRedirectorEnabled=true
-defaultSnapshotVersion=1.5.255-SNAPSHOT
+defaultSnapshotVersion=1.6.255-SNAPSHOT
 
 # Enable JVM IR backend for kotlin-stdlib, kotlin-reflect, kotlin-test.
 #kotlin.build.useIRForLibraries=true
diff --git a/libraries/stdlib/src/kotlin/util/KotlinVersion.kt b/libraries/stdlib/src/kotlin/util/KotlinVersion.kt
index 320eaf67373..1638cba9467 100644
--- a/libraries/stdlib/src/kotlin/util/KotlinVersion.kt
+++ b/libraries/stdlib/src/kotlin/util/KotlinVersion.kt
@@ -79,5 +79,5 @@ public class KotlinVersion(val major: Int, val minor: Int, val patch: Int) : Com
 // this class is ignored during classpath normalization when considering whether to recompile dependencies in Kotlin build
 private object KotlinVersionCurrentValue {
     @kotlin.jvm.JvmStatic
-    fun get(): KotlinVersion = KotlinVersion(1, 5, 255) // value is written here automatically during build
+    fun get(): KotlinVersion = KotlinVersion(1, 6, 255) // value is written here automatically during build
 }
\ No newline at end of file