diff --git a/SameOccurrence/pom.xml b/SameOccurrence/pom.xml
index aa3f963..788d2c8 100644
--- a/SameOccurrence/pom.xml
+++ b/SameOccurrence/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.17.1</version>
+            <version>2.25.3</version>
         </dependency>
         <dependency>
             <groupId>org.antlr</groupId>