diff --git a/Concurrency programming/PP - 10. Lock free hashtable/pom.xml b/Concurrency programming/PP - 10. Lock free hashtable/pom.xml
index 8fc7b7d..ceb2773 100644
--- a/Concurrency programming/PP - 10. Lock free hashtable/pom.xml	
+++ b/Concurrency programming/PP - 10. Lock free hashtable/pom.xml	
@@ -20,7 +20,7 @@
     <dependency>
       <groupId>junit</groupId>
       <artifactId>junit</artifactId>
-      <version>4.11</version>
+      <version>4.13.1</version>
       <scope>test</scope>
     </dependency>
     <dependency>