diff --git a/oauth2/pom.xml b/oauth2/pom.xml
index e217eb9..dea982e 100644
--- a/oauth2/pom.xml
+++ b/oauth2/pom.xml
@@ -51,7 +51,7 @@
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>bootstrap</artifactId>
-			<version>3.2.0</version>
+			<version>4.0.0</version>
 		</dependency>
 		<dependency>
 			<groupId>org.webjars</groupId>