diff --git a/apng_android/build.gradle b/apng_android/build.gradle
index 7086f849..eb4b649f 100644
--- a/apng_android/build.gradle
+++ b/apng_android/build.gradle
@@ -1,5 +1,7 @@
-apply plugin: "com.android.library"
-apply plugin: "kotlin-android"
+plugins {
+    id("com.android.library")
+    id("org.jetbrains.kotlin.android")
+}
 
 android {
     compileSdkVersion stCompileSdkVersion
diff --git a/base/build.gradle b/base/build.gradle
index 7bb12ba8..d6365ca2 100644
--- a/base/build.gradle
+++ b/base/build.gradle
@@ -2,7 +2,6 @@ plugins {
     id "com.android.library"
     id "org.jetbrains.kotlin.android"
 }
-
 android {
     namespace "jp.juggler.base"
     compileSdk stCompileSdkVersion
diff --git a/colorpicker/build.gradle b/colorpicker/build.gradle
index 4fe61fa6..f13ac6d3 100644
--- a/colorpicker/build.gradle
+++ b/colorpicker/build.gradle
@@ -1,5 +1,7 @@
-apply plugin: "com.android.library"
-apply plugin: "kotlin-android"
+plugins {
+    id("com.android.library")
+    id("org.jetbrains.kotlin.android")
+}
 
 android {
     compileSdkVersion stCompileSdkVersion