diff --git a/Chapter04/pom.xml b/Chapter04/pom.xml
index a4e4df8..02d0213 100644
--- a/Chapter04/pom.xml
+++ b/Chapter04/pom.xml
@@ -40,7 +40,7 @@
     <dependency>
         <groupId>org.apache.hadoop</groupId>
         <artifactId>hadoop-common</artifactId>
-        <version>2.7.0</version>
+        <version>2.10.1</version>
     </dependency>
 </dependencies>
 </project>
\ No newline at end of file