diff --git a/README.md b/README.md
index 7492989..5dd7e1b 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ dependencies {
 ```
 #### **`gradle.properties`**
 ```properties
-kotlinCorVersion=0.2.+
+kotlinCorVersion=0.3.+
 ```
 
 ## Usage
diff --git a/build.gradle.kts b/build.gradle.kts
index 50956f4..dfa3f13 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -5,7 +5,7 @@ plugins {
 }
 
 group = "com.crowdproj.kotlin.cor"
-version = "0.2.9"
+version = "0.3.0"
 
 repositories {
     mavenCentral()
@@ -18,16 +18,20 @@ kotlin {
     }
     jvm()
     linuxX64()
+    macosX64()
+    mingwX64()
 
     sourceSets {
         val coroutinesVersion: String by project
 
+        @Suppress("UNUSED_VARIABLE")
         val commonMain by getting {
             dependencies {
                 implementation(kotlin("stdlib-common"))
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion")
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val commonTest by getting {
             dependencies {
                 implementation(kotlin("test-common"))
@@ -35,31 +39,37 @@ kotlin {
                 implementation("org.jetbrains.kotlinx:kotlinx-coroutines-test:$coroutinesVersion")
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val jsMain by getting {
             dependencies {
                 implementation(kotlin("stdlib-js"))
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val jsTest by getting {
             dependencies {
                 implementation(kotlin("test-js"))
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val jvmMain by getting {
             dependencies {
                 implementation(kotlin("stdlib-jdk8"))
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val jvmTest by getting {
             dependencies {
                 implementation(kotlin("test-junit"))
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val linuxX64Main by getting {
             dependencies {
                 implementation(kotlin("stdlib"))
             }
         }
+        @Suppress("UNUSED_VARIABLE")
         val linuxX64Test by getting {
             dependencies {
                 implementation(kotlin("test"))
diff --git a/gradle.properties b/gradle.properties
index bb29df8..490392e 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,4 @@
-kotlinVersion=1.6.10
+kotlinVersion=1.6.21
 
-coroutinesVersion=1.6.0-native-mt
+coroutinesVersion=1.6.2
+#  -native-mt