diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 5b28c49..e4e5f35
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-core</artifactId>
-			<version>4.1.4.RELEASE</version>
+			<version>4.3.21.RELEASE</version>
 		</dependency>
 
 		<dependency>