diff --git a/pom.xml b/pom.xml
index 3ecaf1d..50cf631 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,7 +32,7 @@
         <curator-recipes.version>2.12.0</curator-recipes.version>
         <plugin_jetty_version>6.1.26</plugin_jetty_version>
         <jetty_version>6.1.26</jetty_version>
-        <tomcat_embed_version>8.5.31</tomcat_embed_version>
+        <tomcat_embed_version>8.5.51</tomcat_embed_version>
         <javassist_version>3.20.0-GA</javassist_version>
     </properties>
     <dependencies>