diff --git a/Day09MapReduceCase/MapReduceCase/pom.xml b/Day09MapReduceCase/MapReduceCase/pom.xml
index 1d77c15..0889af6 100644
--- a/Day09MapReduceCase/MapReduceCase/pom.xml
+++ b/Day09MapReduceCase/MapReduceCase/pom.xml
@@ -35,7 +35,7 @@
         <dependency>
             <groupId>org.apache.hadoop</groupId>
             <artifactId>hadoop-common</artifactId>
-            <version>2.8.4</version>
+            <version>3.2.3</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>