diff --git a/pom.xml b/pom.xml
index edb8c444b0..68313880b5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -49,7 +49,7 @@
         <version.plugin.javadoc>3.12.0</version.plugin.javadoc>
 
         <!-- Testing dependencies -->
-        <version.tomcat>11.0.7</version.tomcat> <!-- used for EL API + EL impl in tests -->
+        <version.tomcat>11.0.21</version.tomcat> <!-- used for EL API + EL impl in tests -->
          <version.owb>4.0.3</version.owb>
         <version.arquillian>1.8.0.Final</version.arquillian>
     </properties>