diff --git a/mybatis-3-mybatis-3.4.6/pom.xml b/mybatis-3-mybatis-3.4.6/pom.xml
index 15ecfd0..050f6a8 100644
--- a/mybatis-3-mybatis-3.4.6/pom.xml
+++ b/mybatis-3-mybatis-3.4.6/pom.xml
@@ -179,7 +179,7 @@
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>
       <artifactId>log4j-core</artifactId>
-      <version>2.3</version>
+      <version>2.15.0</version>
       <optional>true</optional>
     </dependency>
     <dependency>