diff --git a/gradle.properties b/gradle.properties
index 459bd9122..04cc8d591 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -44,7 +44,7 @@ personDirectoryVersion=1.8.5
 plutoVersion=2.1.0-M3
 slf4jVersion=1.7.21
 springVersion=3.2.9.RELEASE
-tomcatVersion=8.5.35
+tomcatVersion=8.5.81
 waroverlayPluginVersion=0.9.3
 xercesImplVersion=2.9.1
 nodejsVersion=10.14.2