diff --git a/gradle.properties b/gradle.properties
index 87d14163be..778817289c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,6 +5,6 @@ org.gradle.parallel=true
 org.gradle.jvmargs=-Xmx2g -Dfile.encoding=UTF-8
 
 kotlinVersion=1.6.21
-tomcatVersion=10.0.20
+tomcatVersion=10.0.21
 
 kotlin.stdlib.default.dependency=false