diff --git a/pom.xml b/pom.xml
index feaac08..bd2c47e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -27,7 +27,7 @@
         <elasticsearch.version>8.8.1</elasticsearch.version>
         <beyonder.version>8.6-SNAPSHOT</beyonder.version>
         <slf4j.version>2.0.7</slf4j.version>
-        <log4j.version>2.20.0</log4j.version>
+        <log4j.version>2.21.1</log4j.version>
         <commons.io.version>2.11.0</commons.io.version>
         <jackson.version>2.15.2</jackson.version>
         <junit.version>5.9.3</junit.version>