diff --git a/week1/wordcount/pom.xml b/week1/wordcount/pom.xml
index 416f1d4..53f25ab 100644
--- a/week1/wordcount/pom.xml
+++ b/week1/wordcount/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>org.apache.hadoop</groupId>
             <artifactId>hadoop-common</artifactId>
-            <version>2.7.3</version>
+            <version>3.2.3</version>
         </dependency>
 
         <dependency>