diff --git a/pom.xml b/pom.xml
index beef1ef..7b017ff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
 		<project.build.targetEncoding>UTF-8</project.build.targetEncoding>
 		<maxmem>512M</maxmem>
 		<slf4j.version>1.7.21</slf4j.version>
-		<log4j.version>2.17.1</log4j.version>
+		<log4j.version>2.25.3</log4j.version>
 	</properties>
 	<scm>
 		<connection>scm:git:git://github.com:rcsb/mmtf-java.git</connection>