diff --git a/sample/pom.xml b/sample/pom.xml
index 23eb3616..4b0ac772 100644
--- a/sample/pom.xml
+++ b/sample/pom.xml
@@ -72,6 +72,6 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-		<log4j.version>2.12.1</log4j.version>
+		<log4j.version>2.13.3</log4j.version>
 	</properties>
 </project>