diff --git a/pom.xml b/pom.xml
index 42a40be..5c5106e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,7 +32,7 @@
 		<dependency>
 			<groupId>mysql</groupId>
 			<artifactId>mysql-connector-java</artifactId>
-			<version>8.0.33</version>
+			<version>2.2.4.RELEASE</version>
 		</dependency>
 
 		<dependency>
@@ -58,13 +58,13 @@
 		<dependency>
 			<groupId>io.springfox</groupId>
 			<artifactId>springfox-swagger2</artifactId>
-			<version>2.9.2</version>
+			<version>2.7.0</version>
 		</dependency>
 
 		<dependency>
 			<groupId>io.springfox</groupId>
 			<artifactId>springfox-swagger-ui</artifactId>
-			<version>2.9.2</version>
+			<version>2.10.0</version>
 		</dependency>
 
         <dependency>
@@ -77,7 +77,7 @@
 			<groupId>org.springframework.boot</groupId>
 			<artifactId>spring-boot-starter-test</artifactId>
 			<scope>test</scope>
-			<version>2.2.4.RELEASE</version>
+			<version>4.12</version>
 		</dependency>
 
 		<dependency>