diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 28c9b11..1f96b2b
--- a/pom.xml
+++ b/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-autoconfigure</artifactId>
-            <version>2.1.7.RELEASE</version>
+            <version>2.5.15</version>
             <scope>compile</scope>
         </dependency>
     </dependencies>