diff --git a/code/pom.xml b/code/pom.xml
index 354bb78..0b408e4 100644
--- a/code/pom.xml
+++ b/code/pom.xml
@@ -180,7 +180,7 @@
         <dependency>
             <groupId>org.hsqldb</groupId>
             <artifactId>hsqldb</artifactId>
-            <version>2.5.2</version>
+            <version>2.7.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>