diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index d191912..8a2a233
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
         <dependency>
             <groupId>org.apache.poi</groupId>
             <artifactId>poi</artifactId>
-            <version>3.9</version>
+            <version>4.1.1</version>
         </dependency>
     </dependencies>