diff --git a/e-Knife/pom.xml b/e-Knife/pom.xml
index 2cfe476..7eb13f2 100644
--- a/e-Knife/pom.xml
+++ b/e-Knife/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>
         <dependency>
             <groupId>upv.slicing</groupId>