diff --git a/simple/pom.xml b/simple/pom.xml
index 6e58aab..479bb40 100644
--- a/simple/pom.xml
+++ b/simple/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.0.1.RELEASE</version>
+		<version>2.0.9.RELEASE</version>
 		<relativePath /> <!-- lookup parent from repository -->
 	</parent>
 
@@ -44,12 +44,12 @@
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>jquery</artifactId>
-			<version>2.1.1</version>
+			<version>3.0.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>bootstrap</artifactId>
-			<version>3.2.0</version>
+			<version>4.3.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.webjars</groupId>