diff --git a/.github/workflows/auto-author-assign.yml b/.github/workflows/auto-author-assign.yml
new file mode 100644
index 0000000..3702bcc
--- /dev/null
+++ b/.github/workflows/auto-author-assign.yml
@@ -0,0 +1,13 @@
+name: 'Auto Author Assign'
+
+on:
+  pull_request_target:
+    types: [opened, reopened]
+
+jobs:
+  assign-author:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: toshimaru/auto-author-assign@v1.2.0
+        with:
+          repo-token: "${{ secrets.GITHUB_TOKEN }}"
diff --git a/build.gradle.kts b/build.gradle.kts
index 06a4d1d..dc399c6 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
     id("maven")
     id("java")
-    id("org.jetbrains.kotlin.jvm") version "1.4.21"
+    kotlin("jvm") version "1.4.21"
     id("org.jlleitschuh.gradle.ktlint") version "9.4.1"
     id("jacoco")
 }
@@ -13,22 +13,11 @@ java {
     sourceCompatibility = JavaVersion.VERSION_1_8
 }
 
-buildscript {
-    repositories {
-        mavenCentral()
-    }
-
-    dependencies {
-        classpath(kotlin("gradle-plugin"))
-    }
-}
-
 repositories {
     mavenCentral()
 }
 
 dependencies {
-    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
     implementation(kotlin("reflect"))
     // https://mvnrepository.com/artifact/org.jetbrains/annotations
     compileOnly(group = "org.jetbrains", name = "annotations", version = "20.1.0")