diff --git a/_1/pom.xml b/_1/pom.xml
index e02f679..ce9d28f 100644
--- a/_1/pom.xml
+++ b/_1/pom.xml
@@ -52,7 +52,7 @@
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.9</version>
+            <version>4.1.1</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>