diff --git a/antlr/pom.xml b/antlr/pom.xml
index 451fb1e..4ec5291 100644
--- a/antlr/pom.xml
+++ b/antlr/pom.xml
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.7</version>
+            <version>2.15.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>