diff --git a/pom.xml b/pom.xml
index 3d6b958..dfca4a2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -106,7 +106,7 @@
       <dependency>
         <groupId>org.springframework</groupId>
         <artifactId>spring-core</artifactId>
-        <version>3.2.16.RELEASE</version>
+        <version>4.3.21.RELEASE</version>
       </dependency>
       <dependency>
         <groupId>commons-io</groupId>