diff --git a/examples/test-data-service/build.gradle b/examples/test-data-service/build.gradle
index 9460ca6c..4cb8b753 100644
--- a/examples/test-data-service/build.gradle
+++ b/examples/test-data-service/build.gradle
@@ -18,7 +18,7 @@ dependencies {
     implementation "org.mongodb:mongodb-driver-sync:$mongodbDriverVersion"
     implementation "org.grails.plugins:views-json"
     implementation "org.grails.plugins:views-json-templates"
-    implementation 'org.grails.plugins:spring-security-core:4.0.3'
+    implementation 'org.grails.plugins:spring-security-core:6.1.2'
     implementation 'org.grails.plugins:spring-security-rest:3.0.1'
     profile "org.grails.profiles:rest-api"
     testImplementation "org.grails:grails-gorm-testing-support"