diff --git a/day01_01mybatis/pom.xml b/day01_01mybatis/pom.xml
index 08d99b9..eb77df9 100644
--- a/day01_01mybatis/pom.xml
+++ b/day01_01mybatis/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day01_02mybatis_annotation/pom.xml b/day01_02mybatis_annotation/pom.xml
index ae86f2f..cb5df84 100644
--- a/day01_02mybatis_annotation/pom.xml
+++ b/day01_02mybatis_annotation/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day01_03mybatis_dao/pom.xml b/day01_03mybatis_dao/pom.xml
index 9a63aa7..5c25c13 100644
--- a/day01_03mybatis_dao/pom.xml
+++ b/day01_03mybatis_dao/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day02_01mybatis_crud/pom.xml b/day02_01mybatis_crud/pom.xml
index 31bd8aa..0f3105f 100644
--- a/day02_01mybatis_crud/pom.xml
+++ b/day02_01mybatis_crud/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day03_01dynamicSQL/pom.xml b/day03_01dynamicSQL/pom.xml
index a764b18..be97bee 100644
--- a/day03_01dynamicSQL/pom.xml
+++ b/day03_01dynamicSQL/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day03_02onetoone/pom.xml b/day03_02onetoone/pom.xml
index 61df633..3265470 100644
--- a/day03_02onetoone/pom.xml
+++ b/day03_02onetoone/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day03_03onetomany/pom.xml b/day03_03onetomany/pom.xml
index 85d93cb..d3ba07a 100644
--- a/day03_03onetomany/pom.xml
+++ b/day03_03onetomany/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day03_04manytomany/pom.xml b/day03_04manytomany/pom.xml
index 0e86f91..6bcee19 100644
--- a/day03_04manytomany/pom.xml
+++ b/day03_04manytomany/pom.xml
@@ -29,7 +29,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day03_05jndi/pom.xml b/day03_05jndi/pom.xml
index 9c82eb0..52bbc8c 100644
--- a/day03_05jndi/pom.xml
+++ b/day03_05jndi/pom.xml
@@ -38,7 +38,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day04_01lazy/pom.xml b/day04_01lazy/pom.xml
index 4228a9e..ea6ccd0 100644
--- a/day04_01lazy/pom.xml
+++ b/day04_01lazy/pom.xml
@@ -25,7 +25,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day04_02cache/pom.xml b/day04_02cache/pom.xml
index 57efd47..c8b5ada 100644
--- a/day04_02cache/pom.xml
+++ b/day04_02cache/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day04_03annotation/pom.xml b/day04_03annotation/pom.xml
index e18d80d..ad9e7e6 100644
--- a/day04_03annotation/pom.xml
+++ b/day04_03annotation/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day04_04onetoone/pom.xml b/day04_04onetoone/pom.xml
index fa457ed..caf3cf5 100644
--- a/day04_04onetoone/pom.xml
+++ b/day04_04onetoone/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->
diff --git a/day04_05onetomany/pom.xml b/day04_05onetomany/pom.xml
index e5596e6..05fbf65 100644
--- a/day04_05onetomany/pom.xml
+++ b/day04_05onetomany/pom.xml
@@ -24,7 +24,7 @@
         <dependency>
             <groupId>org.mybatis</groupId>
             <artifactId>mybatis</artifactId>
-            <version>3.4.5</version>
+            <version>3.5.6</version>
         </dependency>
 
         <!--log日志-->