diff --git a/gradle.properties b/gradle.properties
index cd88e80..688a2c5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -35,7 +35,7 @@ micrometerVersion=1.15.1
 # Utility versions
 servletApiVersion=4.0.1
 logbackVersion=1.5.18
-tomcatVersion=11.0.8
+tomcatVersion=11.0.21
 
 # Kotlin coroutines versions
 kotlinxCoroutinesVersion=1.10.2