diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 306a1c1..0259958
--- a/pom.xml
+++ b/pom.xml
@@ -18,7 +18,7 @@
     <jackson.version>2.9.4</jackson.version>
 
     <log4j.version>1.2.12</log4j.version>
-    <mysql.version>8.0.16</mysql.version>
+    <mysql.version>8.0.28</mysql.version>
     <mybatis.version>3.4.5</mybatis.version>
 <!--    <spring.security.version>5.0.1.RELEASE</spring.security.version>-->
 <spring.security.version>4.2.4.RELEASE</spring.security.version>