diff --git a/java-interview-tomcat/pom.xml b/java-interview-tomcat/pom.xml
old mode 100755
new mode 100644
index 5b5a3b2..3ffe2b8
--- a/java-interview-tomcat/pom.xml
+++ b/java-interview-tomcat/pom.xml
@@ -11,7 +11,7 @@
 
     <properties>
         <tomcat.version>8.5.42</tomcat.version>
-        <spring-version>4.3.24.RELEASE</spring-version>
+        <spring-version>5.2.20.RELEASE</spring-version>
         <slf4j.version>1.7.21</slf4j.version>
         <logback.version>1.1.7</logback.version>
     </properties>