diff --git a/microservice-istio-demo/pom.xml b/microservice-istio-demo/pom.xml
index 0d0ef9b..e220c48 100644
--- a/microservice-istio-demo/pom.xml
+++ b/microservice-istio-demo/pom.xml
@@ -25,7 +25,7 @@
 			<dependency>
 				<groupId>org.webjars</groupId>
 				<artifactId>bootstrap</artifactId>
-				<version>3.3.6</version>
+				<version>3.4.1</version>
 			</dependency>
 		</dependencies>
 	</dependencyManagement>