diff --git a/pom.xml b/pom.xml
index 08b325efcc..72aa272c68 100644
--- a/pom.xml
+++ b/pom.xml
@@ -738,7 +738,7 @@
         <owasp-html-sanitizer.version>20220608.1</owasp-html-sanitizer.version>
         <launch-darkly.version>6.0.5</launch-darkly.version>
         <reload4j.version>1.2.19</reload4j.version>
-        <log4j2.version>2.17.1</log4j2.version>
+        <log4j2.version>2.21.1</log4j2.version>
         <lucene-solr.version>8.6.3</lucene-solr.version>
         <maven-site-plugin.version>3.7</maven-site-plugin.version>
         <MaxPermGen>512m</MaxPermGen>