diff --git a/pom.xml b/pom.xml
index ddac278..91aea87 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
     <dependency>
       <groupId>org.jfree</groupId>
       <artifactId>jfreechart</artifactId>
-      <version>1.0.17</version>
+      <version>1.5.1</version>
     </dependency>
     <!-- https://mvnrepository.com/artifact/org.hdrhistogram/HdrHistogram -->
     <dependency>