diff --git a/nam-authn-x509/pom.xml b/nam-authn-x509/pom.xml
index 6a101ab..f221eeb 100644
--- a/nam-authn-x509/pom.xml
+++ b/nam-authn-x509/pom.xml
@@ -49,7 +49,7 @@
 		<dependency>
 			<groupId>org.jgroups</groupId>
 			<artifactId>jgroups</artifactId>
-			<version>3.6.9.Final</version>
+			<version>4.0.0.Final</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>