diff --git a/jigsaw/pom.xml b/jigsaw/pom.xml
index 03e25df..a071b67 100644
--- a/jigsaw/pom.xml
+++ b/jigsaw/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>