diff --git a/pubspec.yaml b/pubspec.yaml
index 40f6a02..fb4f6bd 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -22,6 +22,9 @@ dependencies:
   googleapis_auth: ^1.5.0
   googleapis: ^12.0.0
 
+  # PDF 帳票出力
+  pdf: ^3.10.0
+
 dev_dependencies:
   flutter_test:
     sdk: flutter