diff --git a/gae-helloworld/pom.xml b/gae-helloworld/pom.xml
index 2752324..ade0784 100644
--- a/gae-helloworld/pom.xml
+++ b/gae-helloworld/pom.xml
@@ -8,7 +8,7 @@
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring.version>3.2.2.RELEASE</spring.version>
+		<spring.version>5.2.20.RELEASE</spring.version>
 		<appengine.target.version>1.8.0</appengine.target.version>
 	</properties>