diff --git a/demos/pom.xml b/demos/pom.xml
index 33a53d9..97941bd 100644
--- a/demos/pom.xml
+++ b/demos/pom.xml
@@ -22,7 +22,7 @@
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.15</version>
+            <version>4.1.1</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->