diff --git a/application/src/main/java/run/halo/app/security/preauth/SystemSetupEndpoint.java b/application/src/main/java/run/halo/app/security/preauth/SystemSetupEndpoint.java
index 62027aada..a9061bee8 100644
--- a/application/src/main/java/run/halo/app/security/preauth/SystemSetupEndpoint.java
+++ b/application/src/main/java/run/halo/app/security/preauth/SystemSetupEndpoint.java
@@ -289,7 +289,8 @@ public class SystemSetupEndpoint {
                     var processedContent =
                         PROPERTY_PLACEHOLDER_HELPER.replacePlaceholders(rawContent, properties);
                     // load yaml to unstructured
-                    var stringResource = new InMemoryResource(processedContent);
+                    var stringResource = 
+                        new InMemoryResource(processedContent.getBytes(StandardCharsets.UTF_8));
                     var loader = new YamlUnstructuredLoader(stringResource);
                     return loader.load();
                 })