diff --git a/pyweeder/misc/suffix-tree/pom.xml b/pyweeder/misc/suffix-tree/pom.xml
index c507b06..631ff80 100644
--- a/pyweeder/misc/suffix-tree/pom.xml
+++ b/pyweeder/misc/suffix-tree/pom.xml
@@ -14,7 +14,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>3.8.1</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>