diff --git a/build.gradle b/build.gradle
index 20fc545..d2c9ed6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -76,7 +76,7 @@ dependencies {
     testImplementation 'org.springframework.security:spring-security-webauthn'
     testImplementation 'org.springframework.retry:spring-retry:2.0.13'
     testImplementation 'jakarta.validation:jakarta.validation-api:3.1.1'
-    testImplementation 'org.hibernate.validator:hibernate-validator:9.1.3.Final'
+    testImplementation 'org.hibernate.validator:hibernate-validator:9.1.4.Final'
     testImplementation 'com.h2database:h2:2.5.250'
 
     // Spring Boot 4 test starters (modular test infrastructure)