diff --git a/demo-client/pom.xml b/demo-client/pom.xml
index 6b37e3a..64617fa 100644
--- a/demo-client/pom.xml
+++ b/demo-client/pom.xml
@@ -76,7 +76,7 @@
     <dependency>
       <groupId>org.apache.tomcat.embed</groupId>
       <artifactId>tomcat-embed-core</artifactId>
-      <version>9.0.12</version>
+      <version>9.0.35</version>
       <scope>compile</scope>
     </dependency>
     <dependency>