diff --git a/pom.xml b/pom.xml
index e3665ec5..8f13be12 100644
--- a/pom.xml
+++ b/pom.xml
@@ -19,7 +19,7 @@
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <fhir.version>7.6.1</fhir.version>
-        <log4j.version>2.25.3</log4j.version>
+        <log4j.version>2.25.4</log4j.version>
         <fasterxml.version>2.19.2</fasterxml.version>
         <sonar.organization>nhsdigital</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>