diff --git a/websocket/pom.xml b/websocket/pom.xml
index adbe5c0..e3355f9 100644
--- a/websocket/pom.xml
+++ b/websocket/pom.xml
@@ -53,7 +53,7 @@
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>bootstrap</artifactId>
-			<version>3.3.7</version>
+			<version>4.3.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.webjars</groupId>