diff --git a/build.gradle.kts b/build.gradle.kts
index 8b9e41c..83cb5b8 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -17,7 +17,7 @@ ext["excludeTest"] = { project: Project, tasks: TaskContainer ->
 
 
 plugins {
-    kotlin("jvm") version "1.5.0"
+    kotlin("jvm") version "1.5.20"
     `maven-publish`
 }
 
diff --git a/ts-core/ts-buffer/src/main/kotlin/cn/tursom/core/buffer/impl/CloseSafeByteBuffer.kt b/ts-core/ts-buffer/src/main/kotlin/cn/tursom/core/buffer/impl/CloseSafeByteBuffer.kt
index bc02c50..5a6e091 100644
--- a/ts-core/ts-buffer/src/main/kotlin/cn/tursom/core/buffer/impl/CloseSafeByteBuffer.kt
+++ b/ts-core/ts-buffer/src/main/kotlin/cn/tursom/core/buffer/impl/CloseSafeByteBuffer.kt
@@ -61,3 +61,10 @@ open class CloseSafeByteBuffer(
     return agent.resize(newSize)
   }
 }
+
+
+fun main() {
+  val map = mapOf(1 to "1_", 2 to "2_")
+  map.entries.associate { it.value to it.key }
+}
+
diff --git a/ts-database/build.gradle.kts b/ts-database/build.gradle.kts
index 789f79f..2ff82bd 100644
--- a/ts-database/build.gradle.kts
+++ b/ts-database/build.gradle.kts
@@ -13,7 +13,7 @@ dependencies {
   compileOnly(group = "com.google.code.gson", name = "gson", version = "2.8.6")
 }
 
-@kotlin.Suppress("UNCHECKED_CAST")
+  @kotlin.Suppress("UNCHECKED_CAST")
 (rootProject.ext["excludeTest"] as (Project, TaskContainer) -> Unit)(project, tasks)
 
 tasks.register("install") {