diff --git a/tomcat9.0-source/pom.xml b/tomcat9.0-source/pom.xml
index 362ecc2d..caf134d9 100644
--- a/tomcat9.0-source/pom.xml
+++ b/tomcat9.0-source/pom.xml
@@ -46,7 +46,7 @@
         <dependency>
             <groupId>org.apache.ant</groupId>
             <artifactId>ant</artifactId>
-            <version>1.10.8</version>
+            <version>1.10.11</version>
         </dependency>
         <dependency>
             <groupId>wsdl4j</groupId>