diff --git a/Playground/spring-security-demo-01-base-app/pom.xml b/Playground/spring-security-demo-01-base-app/pom.xml
old mode 100755
new mode 100644
index dac638c..1f2e0d1
--- a/Playground/spring-security-demo-01-base-app/pom.xml
+++ b/Playground/spring-security-demo-01-base-app/pom.xml
@@ -10,7 +10,7 @@
 	<name>spring-security-demo</name>
 
 	<properties>
-		<springframework.version>5.0.2.RELEASE</springframework.version>
+		<springframework.version>5.2.20.RELEASE</springframework.version>
 		<springsecurity.version>5.0.0.RELEASE</springsecurity.version>
 
 		<maven.compiler.source>1.8</maven.compiler.source>