diff --git a/ch25/crm-sales-start/pom.xml b/ch25/crm-sales-start/pom.xml
old mode 100755
new mode 100644
index d569e26b..4c00b651
--- a/ch25/crm-sales-start/pom.xml
+++ b/ch25/crm-sales-start/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>6.0.6</version>
+            <version>8.0.16</version>
         </dependency>
 
         <dependency>
diff --git a/ch25/pom.xml b/ch25/pom.xml
old mode 100755
new mode 100644
index 10846de4..407508ff
--- a/ch25/pom.xml
+++ b/ch25/pom.xml
@@ -131,7 +131,7 @@
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>5.1.36</version>
+                <version>8.0.16</version>
             </dependency>
             <dependency>
                 <groupId>org.mybatis</groupId>
@@ -229,7 +229,7 @@
             <dependency>
                 <groupId>mysql</groupId>
                 <artifactId>mysql-connector-java</artifactId>
-                <version>5.1.36</version>
+                <version>8.0.16</version>
             </dependency>
             <!-- jdbc driver END -->