diff --git a/knowledge-cache/pom.xml b/knowledge-cache/pom.xml
index 797f7661..90f36ef2 100644
--- a/knowledge-cache/pom.xml
+++ b/knowledge-cache/pom.xml
@@ -192,7 +192,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-api</artifactId>
-            <version>2.6.2</version>
+            <version>2.16.0</version>
         </dependency>
         <dependency>
             <groupId>joda-time</groupId>