diff --git a/app/build.gradle b/app/build.gradle
index 7353d41..40adf01 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -27,5 +27,7 @@
     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'
     implementation 'com.android.support:design:28.0.0'
 }