diff --git a/pom.xml b/pom.xml
index 818d1b8..d1ce20f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -162,7 +162,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.38</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- servlet -->
@@ -257,7 +257,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>22.0</version>
+            <version>28.2-jre</version>
         </dependency>
         <dependency>
             <groupId>org.jodd</groupId>
@@ -319,7 +319,7 @@
                         <dependency>
                             <groupId>mysql</groupId>
                             <artifactId>mysql-connector-java</artifactId>
-                            <version>5.1.38</version>
+                            <version>8.0.16</version>
                         </dependency>
                     </dependencies>
                 </plugin>