diff --git a/Spring-Learn/pom.xml b/Spring-Learn/pom.xml
index 8ef9ef7..1c91c6f 100644
--- a/Spring-Learn/pom.xml
+++ b/Spring-Learn/pom.xml
@@ -28,7 +28,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
-            <version>5.2.0.RELEASE</version>
+            <version>5.2.20.RELEASE</version>
         </dependency>
 
         <!--junit-->
diff --git a/Spring-Learn/spring-10-mybatis/pom.xml b/Spring-Learn/spring-10-mybatis/pom.xml
index 0f3b4dd..509664c 100644
--- a/Spring-Learn/spring-10-mybatis/pom.xml
+++ b/Spring-Learn/spring-10-mybatis/pom.xml
@@ -33,7 +33,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
-            <version>5.2.7.RELEASE</version>
+            <version>5.2.20.RELEASE</version>
         </dependency>
 
         <!--Spring 操作数据库的话，还需要一个 spring-jdbc 的包-->
diff --git a/Spring-Learn/spring-11-transaction/pom.xml b/Spring-Learn/spring-11-transaction/pom.xml
index 2ba8a86..1232f4b 100644
--- a/Spring-Learn/spring-11-transaction/pom.xml
+++ b/Spring-Learn/spring-11-transaction/pom.xml
@@ -32,7 +32,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-webmvc</artifactId>
-            <version>5.2.7.RELEASE</version>
+            <version>5.2.20.RELEASE</version>
         </dependency>
 
         <!--Spring 操作数据库的话，还需要一个 spring-jdbc 的包-->