diff --git a/pom.xml b/pom.xml
index 03be0fe..c405f05 100644
--- a/pom.xml
+++ b/pom.xml
@@ -88,7 +88,7 @@
     <rxjava-version>3.1.8</rxjava-version>
     <spring-version>5.3.30</spring-version>
     <slf4j-version>2.0.9</slf4j-version>
-    <log4j2-version>2.20.0</log4j2-version>
+    <log4j2-version>2.21.0</log4j2-version>
     <reactivestreams-version>1.0.4</reactivestreams-version>
   </properties>