diff --git a/Src/PEx/pom.xml b/Src/PEx/pom.xml
index f8401cce2..79de35b11 100644
--- a/Src/PEx/pom.xml
+++ b/Src/PEx/pom.xml
@@ -87,7 +87,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.20.0</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>