diff --git a/pom.xml b/pom.xml
index 345e836..39d3e17 100644
--- a/pom.xml
+++ b/pom.xml
@@ -52,9 +52,9 @@
             <version>8.1.8</version>
         </dependency>
         <!--<dependency>-->
-            <!--<groupId>mysql</groupId>-->
-            <!--<artifactId>mysql-connector-java</artifactId>-->
-            <!--<version>5.1.20</version>-->
+        <!--<groupId>mysql</groupId>-->
+        <!--<artifactId>mysql-connector-java</artifactId>-->
+        <!--<version>5.1.20</version>-->
         <!--</dependency>-->
         <dependency>
             <groupId>com.alibaba</groupId>
@@ -62,9 +62,9 @@
             <version>1.2.6</version>
         </dependency>
         <dependency>
-                <groupId>org.mongodb</groupId>
-                <artifactId>mongo-java-driver</artifactId>
-                <version>3.4.2</version>
+            <groupId>org.mongodb</groupId>
+            <artifactId>mongo-java-driver</artifactId>
+            <version>3.4.2</version>
         </dependency>
     </dependencies>
 </project>
\ No newline at end of file