diff --git a/10.5.oauth2-rest/server/pom.xml b/10.5.oauth2-rest/server/pom.xml
index b631cf8..38b8bf4 100644
--- a/10.5.oauth2-rest/server/pom.xml
+++ b/10.5.oauth2-rest/server/pom.xml
@@ -60,7 +60,7 @@
         <dependency>
             <groupId>org.apache.tomcat.embed</groupId>
             <artifactId>tomcat-embed-core</artifactId>
-            <version>8.5.96</version>
+            <version>8.5.99</version>
             <scope>provided</scope>
         </dependency>
         <dependency>