diff --git a/Permutation/pom.xml b/Permutation/pom.xml
index 2440577..f421ed3 100644
--- a/Permutation/pom.xml
+++ b/Permutation/pom.xml
@@ -119,7 +119,7 @@
         <dependency>
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
-            <version>2.4.1</version>
+            <version>2.7.1</version>
             <scope>test</scope>
         </dependency>
         <!-- JUnit 4 Compatibility