diff --git a/InvertedIndex/pom.xml b/InvertedIndex/pom.xml
index 6936a95..e8f21e6 100644
--- a/InvertedIndex/pom.xml
+++ b/InvertedIndex/pom.xml
@@ -25,7 +25,7 @@
     <dependency>
         <groupId>junit</groupId>
         <artifactId>junit</artifactId>
-        <version>3.8.1</version>
+        <version>4.13.1</version>
         <scope>test</scope>
     </dependency>
     <!-- https://mvnrepository.com/artifact/org.apache.lucene/lucene-snowball -->