diff --git a/tutorials/streamingwithflink/javaSample/simpleonu/pom.xml b/tutorials/streamingwithflink/javaSample/simpleonu/pom.xml
index 64f6c87..081d34d 100644
--- a/tutorials/streamingwithflink/javaSample/simpleonu/pom.xml
+++ b/tutorials/streamingwithflink/javaSample/simpleonu/pom.xml
@@ -35,7 +35,7 @@ under the License.
 		<scala.binary.version>2.11</scala.binary.version>
 		<maven.compiler.source>${java.version}</maven.compiler.source>
 		<maven.compiler.target>${java.version}</maven.compiler.target>
-		<log4j.version>2.17.1</log4j.version>
+		<log4j.version>2.25.3</log4j.version>
 	</properties>
 
 	<repositories>