diff --git a/java-component/chapter3_3_redis_spring_session/pom.xml b/java-component/chapter3_3_redis_spring_session/pom.xml
old mode 100755
new mode 100644
index 829cfc2..66a90f4
--- a/java-component/chapter3_3_redis_spring_session/pom.xml
+++ b/java-component/chapter3_3_redis_spring_session/pom.xml
@@ -12,7 +12,7 @@
     <url>http://maven.apache.org</url>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <spring.version>4.3.3.RELEASE</spring.version>
+        <spring.version>5.2.20.RELEASE</spring.version>
     </properties>
     <dependencies>
         <dependency>