diff --git a/exoplex/pom.xml b/exoplex/pom.xml
index e560e148..745bece5 100644
--- a/exoplex/pom.xml
+++ b/exoplex/pom.xml
@@ -275,7 +275,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.13.2</version>
+            <version>2.17.1</version>
         </dependency>
         <dependency>
             <groupId>commons-net</groupId>