diff --git a/01.SpringSecurityDemo/pom.xml b/01.SpringSecurityDemo/pom.xml
index 8c38401..5f043b2 100644
--- a/01.SpringSecurityDemo/pom.xml
+++ b/01.SpringSecurityDemo/pom.xml
@@ -12,7 +12,7 @@
 		<maven.compiler.source>1.8</maven.compiler.source>
 		<maven.compiler.target>1.8</maven.compiler.target>
 
-		<springframework.version>5.2.3.RELEASE</springframework.version>
+		<springframework.version>5.2.20.RELEASE</springframework.version>
 		<springsecurity.version>5.2.3.RELEASE</springsecurity.version>
 	</properties>