diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 841bc1f..6c1abb4
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
 
 	<properties>
 		<jdk.version>1.6</jdk.version>
-		<spring.version>3.2.13.RELEASE</spring.version>
+		<spring.version>5.2.20.RELEASE</spring.version>
 		<jstl.version>1.2</jstl.version>
 	</properties>