diff --git a/requirements.txt b/requirements.txt
index fe3c9b4..86f836c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,6 +53,9 @@ plotly>=5.17.0
 matplotlib==3.9.0
 wordcloud==1.9.3
 
+# ===== PDF生成 =====
+weasyprint>=60.0  # PDF导出，支持Python 3.9-3.13
+
 # ===== 机器学习（可选，用于情感分析，不安装也没事写了容错程序） =====
 torch>=2.0.0 # CPU版本
 transformers>=4.30.0