diff --git a/.idea/compiler.xml b/.idea/compiler.xml
new file mode 100644
index 0000000..61a9130
--- /dev/null
+++ b/.idea/compiler.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="1.8" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index bc8d0a3..38167d7 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/build.gradle.kts b/build.gradle.kts
index f087be2..adf5f58 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,12 +1,12 @@
 plugins {
     id("maven")
     id("java")
-    id("org.jetbrains.kotlin.jvm") version "1.3.71"
+    id("org.jetbrains.kotlin.jvm") version "1.3.72"
     id("org.jlleitschuh.gradle.ktlint") version "9.2.1"
 }
 
 group = "com.mapk"
-version = "0.10"
+version = "0.11"
 
 java {
     sourceCompatibility = JavaVersion.VERSION_1_8
@@ -18,7 +18,7 @@ buildscript {
     }
 
     dependencies {
-        classpath(kotlin("gradle-plugin", version = "1.3.71"))
+        classpath(kotlin("gradle-plugin"))
     }
 }
 
@@ -33,7 +33,7 @@ dependencies {
     implementation(group = "org.jetbrains", name = "annotations", version = "19.0.0")
 
     // https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter
-    testImplementation(group = "org.junit.jupiter", name = "junit-jupiter", version = "5.6.1") {
+    testImplementation(group = "org.junit.jupiter", name = "junit-jupiter", version = "5.6.2") {
         exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
     }
     // https://mvnrepository.com/artifact/io.mockk/mockk
diff --git a/src/test/kotlin/com/mapk/core/ArgumentBucketTest.kt b/src/test/kotlin/com/mapk/core/ArgumentBucketTest.kt
index 0aaa633..b5622e0 100644
--- a/src/test/kotlin/com/mapk/core/ArgumentBucketTest.kt
+++ b/src/test/kotlin/com/mapk/core/ArgumentBucketTest.kt
@@ -9,6 +9,7 @@ import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.TestInstance
 import org.junit.jupiter.api.assertDoesNotThrow
 import org.junit.jupiter.api.assertThrows
 
@@ -24,9 +25,11 @@ private fun sampleAnnotatedFunction(@KParameterRequireNonNull arg1: Any, arg2: A
 }
 
 @DisplayName("ArgumentBucketTestのテスト")
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
 class ArgumentBucketTest {
     @Nested
     @DisplayName("シンプルな呼び出しのテスト")
+    @TestInstance(TestInstance.Lifecycle.PER_CLASS)
     inner class SimpleTest {
         private lateinit var argumentBucket: ArgumentBucket
 
@@ -80,6 +83,7 @@ class ArgumentBucketTest {
 
     @Nested
     @DisplayName("アノテーションを付与した場合のテスト")
+    @TestInstance(TestInstance.Lifecycle.PER_CLASS)
     inner class AnnotatedParametersTest {
         @Test
         @DisplayName("non-null要求のテスト")
diff --git a/src/test/kotlin/com/mapk/core/KFunctionForCallTest.kt b/src/test/kotlin/com/mapk/core/KFunctionForCallTest.kt
index daf33ea..a9bd801 100644
--- a/src/test/kotlin/com/mapk/core/KFunctionForCallTest.kt
+++ b/src/test/kotlin/com/mapk/core/KFunctionForCallTest.kt
@@ -7,12 +7,15 @@ import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Nested
 import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.TestInstance
 import org.junit.jupiter.api.assertDoesNotThrow
 import org.junit.jupiter.api.assertThrows
 
+@TestInstance(TestInstance.Lifecycle.PER_CLASS)
 class KFunctionForCallTest {
     @Nested
     @DisplayName("初期化関連テスト")
+    @TestInstance(TestInstance.Lifecycle.PER_CLASS)
     inner class InitializeTest {
         // 空引数の関数
         private fun dummy1() {}
@@ -40,6 +43,7 @@ class KFunctionForCallTest {
 
     @Nested
     @DisplayName("呼び出し関連テスト")
+    @TestInstance(TestInstance.Lifecycle.PER_CLASS)
     inner class CallTest {
         @Test
         @DisplayName("コンパニオンオブジェクトから取得した場合")