diff --git a/core/pom.xml b/core/pom.xml
index 22db81be..e5367a31 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -561,7 +561,7 @@
       <dependency>
          <groupId>org.apache.tomcat</groupId>
          <artifactId>tomcat-catalina</artifactId>
-         <version>8.0.36</version>
+         <version>8.5.9</version>
       </dependency>
       <dependency>
          <groupId>org.apache.tomcat</groupId>