diff --git a/app/build.gradle b/app/build.gradle
index 5677a4a..1493402 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -22,9 +22,12 @@
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'com.android.support:design:28.0.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
     // Retrofit
     implementation "com.squareup.retrofit2:retrofit:2.5.0"
+    //QRコードリーダー
+    implementation 'com.journeyapps:zxing-android-embedded:3.6.0'
 }