Update junit to fix CVE-2020-15250
diff --git a/pom.xml b/pom.xml
index 3929d8f..0096e9f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -67,7 +67,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>