diff --git a/day01_02mybatis_annotation/pom.xml b/day01_02mybatis_annotation/pom.xml
index ae86f2f..660865f 100644
--- a/day01_02mybatis_annotation/pom.xml
+++ b/day01_02mybatis_annotation/pom.xml
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.37</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- mybatis配置 -->
diff --git a/day01_03mybatis_dao/pom.xml b/day01_03mybatis_dao/pom.xml
index 9a63aa7..24254d6 100644
--- a/day01_03mybatis_dao/pom.xml
+++ b/day01_03mybatis_dao/pom.xml
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.37</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- mybatis配置 -->
diff --git a/day02_01mybatis_crud/pom.xml b/day02_01mybatis_crud/pom.xml
index 31bd8aa..a3dfe4b 100644
--- a/day02_01mybatis_crud/pom.xml
+++ b/day02_01mybatis_crud/pom.xml
@@ -23,7 +23,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.37</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- mybatis配置 -->
diff --git a/day03_01dynamicSQL/pom.xml b/day03_01dynamicSQL/pom.xml
index a764b18..84e917f 100644
--- a/day03_01dynamicSQL/pom.xml
+++ b/day03_01dynamicSQL/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.37</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- mybatis配置 -->
diff --git a/day03_02onetoone/pom.xml b/day03_02onetoone/pom.xml
index 61df633..62e48cf 100644
--- a/day03_02onetoone/pom.xml
+++ b/day03_02onetoone/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>mysql</groupId>
             <artifactId>mysql-connector-java</artifactId>
-            <version>5.1.37</version>
+            <version>8.0.16</version>
         </dependency>
 
         <!-- mybatis配置 -->