diff --git a/guestbook/pom.xml b/guestbook/pom.xml
index 0d51bde..6eba606 100644
--- a/guestbook/pom.xml
+++ b/guestbook/pom.xml
@@ -78,7 +78,7 @@
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>
-			<version>8.0.21</version>
+			<version>8.0.28</version>
 		</dependency>
 		<dependency>
 			<groupId>org.apache.commons</groupId>