diff --git a/libraries-server/pom.xml b/libraries-server/pom.xml
index 66d6295f7ca8..027770dd3e99 100644
--- a/libraries-server/pom.xml
+++ b/libraries-server/pom.xml
@@ -93,7 +93,7 @@
         <httpclient.version>4.5.3</httpclient.version>
         <jetty.version>9.4.27.v20200227</jetty.version>
         <netty.version>4.1.20.Final</netty.version>
-        <tomcat.version>8.5.24</tomcat.version>
+        <tomcat.version>8.5.51</tomcat.version>
         <smack.version>4.3.1</smack.version>
         <eclipse.paho.client.mqttv3.version>1.2.0</eclipse.paho.client.mqttv3.version>
         <nanohttpd.version>2.3.1</nanohttpd.version>