diff --git a/server/skillhub-app/src/main/resources/application.yml b/server/skillhub-app/src/main/resources/application.yml
index 10e9638e..b290fc77 100644
--- a/server/skillhub-app/src/main/resources/application.yml
+++ b/server/skillhub-app/src/main/resources/application.yml
@@ -13,6 +13,7 @@ server:
 spring:
   messages:
     basename: messages
+    fallback-to-system-locale: false
   application:
     name: skillhub
   lifecycle:
diff --git a/server/skillhub-app/src/test/java/com/iflytek/skillhub/security/ApiAccessDeniedHandlerTest.java b/server/skillhub-app/src/test/java/com/iflytek/skillhub/security/ApiAccessDeniedHandlerTest.java
index 00ca5e8a..8c9e43e8 100644
--- a/server/skillhub-app/src/test/java/com/iflytek/skillhub/security/ApiAccessDeniedHandlerTest.java
+++ b/server/skillhub-app/src/test/java/com/iflytek/skillhub/security/ApiAccessDeniedHandlerTest.java
@@ -38,6 +38,7 @@ class ApiAccessDeniedHandlerTest {
     @BeforeEach
     void setUp() {
         ResourceBundleMessageSource messageSource = new ResourceBundleMessageSource();
+        messageSource.setFallbackToSystemLocale(false);
         messageSource.setBasename("messages");
         messageSource.setDefaultEncoding("UTF-8");
         RequestIdAccessor requestIdAccessor = new RequestIdAccessor();