diff --git a/little-demo/pom.xml b/little-demo/pom.xml
index 5406eb5..8049d93 100644
--- a/little-demo/pom.xml
+++ b/little-demo/pom.xml
@@ -145,7 +145,7 @@
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.17</version>
+            <version>4.1.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>