diff --git a/pom.xml b/pom.xml
index a6482e9..a3884c5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
         <spring-ldap-core.version>2.3.2.RELEASE</spring-ldap-core.version>
         <spring.security.version>4.2.13.RELEASE</spring.security.version>
         <spring-webflow.version>2.5.1.RELEASE</spring-webflow.version>
-        <tomcat.version>9.0.21</tomcat.version>
+        <tomcat.version>9.0.22</tomcat.version>
         <wss4j.version>2.2.2</wss4j.version>
 
         <tomcat.url>http://localhost:8080/manager/text</tomcat.url>