diff --git a/build.gradle b/build.gradle
index cef513b..322fd52 100644
--- a/build.gradle
+++ b/build.gradle
@@ -50,7 +50,7 @@ dependencies {
 
     // tomcat for tests
     testImplementation "javax.annotation:javax.annotation-api:1.3.2"
-    testImplementation("org.apache.tomcat.embed:tomcat-embed-core:9.0.31") {
+    testImplementation("org.apache.tomcat.embed:tomcat-embed-core:9.0.33") {
         exclude group: "tomcat-annotations-api", module: "org.apache.tomcat"
     }
     testImplementation "org.apache.tomcat.embed:tomcat-embed-el:9.0.31"