diff --git a/khkw/helloScala/pom.xml b/khkw/helloScala/pom.xml
index 6ae6f6d..0f99bb6 100644
--- a/khkw/helloScala/pom.xml
+++ b/khkw/helloScala/pom.xml
@@ -48,7 +48,7 @@ under the License.
 		<flink.version>1.13.0</flink.version>
 		<scala.binary.version>2.11</scala.binary.version>
 		<scala.version>2.11.12</scala.version>
-		<log4j.version>2.12.1</log4j.version>
+		<log4j.version>2.16.0</log4j.version>
 	</properties>
 
 	<dependencies>