diff --git a/2020-08/spring-13/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml b/2020-08/spring-13/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml
index df1a2a7b..5cb9d0e1 100644
--- a/2020-08/spring-13/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml
+++ b/2020-08/spring-13/spring-data-mongo-class-work/spring-data-mongo-exercise/pom.xml
@@ -11,7 +11,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>2.2.1.RELEASE</version>
+        <version>2.3.4.RELEASE</version>
         <relativePath />
     </parent>