diff --git a/pom.xml b/pom.xml
index 26959fa7..21ab609b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -104,7 +104,7 @@
         <jdbc.groupId>org.hsqldb</jdbc.groupId>
         <jdbc.artifactId>hsqldb</jdbc.artifactId>
         <jdbc.version>2.2.9</jdbc.version>
-        <tomcat-jdbc.version>8.5.4</tomcat-jdbc.version>
+        <tomcat-jdbc.version>8.5.47</tomcat-jdbc.version>
         <logback.version>1.2.3</logback.version>
         <slf4j.version>1.7.28</slf4j.version>
     </properties>