diff --git a/pom.xml b/pom.xml
index c209cb4..b2d220b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -232,7 +232,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-to-slf4j</artifactId>
-            <version>2.18.0</version>
+            <version>2.21.1</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>