diff --git a/app/build.gradle b/app/build.gradle
index ae602fc..5e7e062 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -63,4 +63,5 @@ dependencies {
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
+    implementation 'com.journeyapps:zxing-android-embedded:4.3.0'//QR用zxingライブラリ
 }
\ No newline at end of file