diff --git a/cas-client-integration-tomcat-v6/pom.xml b/cas-client-integration-tomcat-v6/pom.xml
index 2f6a1ba..ff854df 100644
--- a/cas-client-integration-tomcat-v6/pom.xml
+++ b/cas-client-integration-tomcat-v6/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>org.apache.tomcat</groupId>
             <artifactId>catalina</artifactId>
-            <version>6.0.29</version>
+            <version>6.0.53</version>
             <type>jar</type>
             <scope>provided</scope>
             <exclusions>