diff --git a/pom.xml b/pom.xml
old mode 100755
new mode 100644
index d2d15e3..5e26a07
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <red5.version>1.0.10-M7</red5.version>
-        <spring.version>4.2.3.RELEASE</spring.version>
+        <spring.version>5.2.20.RELEASE</spring.version>
         <mina.version>2.0.14</mina.version>
         <slf4j.version>1.7.9</slf4j.version>
         <logback.version>1.1.2</logback.version>