diff --git a/flink-code-java-0421/pom.xml b/flink-code-java-0421/pom.xml
index 2180ed37..ed3123af 100644
--- a/flink-code-java-0421/pom.xml
+++ b/flink-code-java-0421/pom.xml
@@ -36,7 +36,7 @@ under the License.
 		<maven.compiler.target>${java.version}</maven.compiler.target>
 		<log4j.version>2.12.1</log4j.version>
 		<hive.version>3.1.2</hive.version>
-		<hadoop.version>3.2.1</hadoop.version>
+		<hadoop.version>3.2.3</hadoop.version>
 	</properties>
 
 	<repositories>