diff --git a/pom.xml b/pom.xml
index 90f14cd..0e7136e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -106,7 +106,7 @@
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-slf4j-impl</artifactId>
-      <version>2.20.0</version>
+      <version>2.21.1</version>
     </dependency>
     <!-- Command line parsing  -->
     <dependency>