diff --git a/Legacy/real_time/surface_src/java_src/libs/jfreechart/pom.xml b/Legacy/real_time/surface_src/java_src/libs/jfreechart/pom.xml
index 4e924b91..4b111289 100644
--- a/Legacy/real_time/surface_src/java_src/libs/jfreechart/pom.xml
+++ b/Legacy/real_time/surface_src/java_src/libs/jfreechart/pom.xml
@@ -70,7 +70,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>