diff --git a/sort/pom.xml b/sort/pom.xml
index 5b0ac1a..d94fc66 100644
--- a/sort/pom.xml
+++ b/sort/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-api</artifactId>
-            <version>2.9.1</version>
+            <version>2.15.0</version>
         </dependency>
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>