diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index 0d0b7633..be27e43f
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,7 @@
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
-		<org.springframework.version>4.3.20.RELEASE</org.springframework.version>
+		<org.springframework.version>4.3.21.RELEASE</org.springframework.version>
 	</properties>
 	<dependencies>