diff --git a/math-305/pom.xml b/math-305/pom.xml
index fbd30af..1e38be9 100644
--- a/math-305/pom.xml
+++ b/math-305/pom.xml
@@ -333,7 +333,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
   </dependencies>