diff --git a/virtualparts.sbol/pom.xml b/virtualparts.sbol/pom.xml
index 73909df..12f7adf 100644
--- a/virtualparts.sbol/pom.xml
+++ b/virtualparts.sbol/pom.xml
@@ -15,7 +15,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.9</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>