diff --git a/Excel-Demo/pom.xml b/Excel-Demo/pom.xml
index 241336c..65071e9 100644
--- a/Excel-Demo/pom.xml
+++ b/Excel-Demo/pom.xml
@@ -13,7 +13,7 @@
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.15</version>
+            <version>4.1.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>