diff --git a/server/pom.xml b/server/pom.xml
index e3b4f81..d1ab56e 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -25,6 +25,7 @@
     </properties>
 
     <dependencies>
+        <!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
         <dependency>
             <groupId>org.mybatis.spring.boot</groupId>
             <artifactId>mybatis-spring-boot-starter</artifactId>