diff --git a/simple-demo/simple-demo/pom.xml b/simple-demo/simple-demo/pom.xml
index 9e89037..22bf945 100644
--- a/simple-demo/simple-demo/pom.xml
+++ b/simple-demo/simple-demo/pom.xml
@@ -47,7 +47,7 @@
     <dependency>
       <groupId>org.springframework</groupId>
       <artifactId>spring-core</artifactId>
-      <version>3.2.2.RELEASE</version>
+      <version>4.3.19.RELEASE</version>
     </dependency>
     <dependency>
       <groupId>org.springframework</groupId>