diff --git a/basic-web-security/pom.xml b/basic-web-security/pom.xml
index ee4288b..dacc542 100644
--- a/basic-web-security/pom.xml
+++ b/basic-web-security/pom.xml
@@ -73,7 +73,7 @@
 		<dependency>
 			<groupId>org.webjars</groupId>
 			<artifactId>bootstrap</artifactId>
-			<version>4.1.0</version>
+			<version>4.3.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.webjars</groupId>