diff --git a/recommender/OfflineRecommender/pom.xml b/recommender/OfflineRecommender/pom.xml
index a8443ea..80c035a 100644
--- a/recommender/OfflineRecommender/pom.xml
+++ b/recommender/OfflineRecommender/pom.xml
@@ -35,7 +35,7 @@
         <dependency>
             <groupId>org.apache.logging.log4j</groupId>
             <artifactId>log4j-core</artifactId>
-            <version>2.9.0</version>
+            <version>2.15.0</version>
         </dependency>
 
         <!-- Spark的依赖引入 -->