diff --git a/Advent_2021/pom.xml b/Advent_2021/pom.xml
index 6d967ed..cddb4d6 100644
--- a/Advent_2021/pom.xml
+++ b/Advent_2021/pom.xml
@@ -17,7 +17,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.13</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
     </dependencies>