diff --git a/plugin.xml b/plugin.xml
index 340a630..d89f9df 100644
--- a/plugin.xml
+++ b/plugin.xml
@@ -5,7 +5,7 @@
     <main-package>com.fanruan.fs</main-package>
     <active>yes</active>
     <hidden>no</hidden>
-    <version>2.0</version>
+    <version>2.2</version>
     <env-version>10.0</env-version>
     <jartime>2020-01-27</jartime>
     <vendor>richie</vendor>
diff --git a/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java b/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
index 540d27c..49bd4e6 100644
--- a/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
+++ b/src/main/java/com/fanruan/fs/s3/repository/core/S3ResourceRepository.java
@@ -28,7 +28,7 @@ import com.fr.workspace.resource.ResourceIOException;
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
 import java.net.URL;
-import java.net.URLConnection;
+import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -40,6 +40,7 @@ import java.util.List;
 public class S3ResourceRepository extends BaseResourceRepository {
 
     private static final String DELIMITER = "/";
+    private static final String CHAR_SET = "UTF-8";
 
     private final AmazonS3 s3;
     private final String bucket;
@@ -162,18 +163,7 @@ public class S3ResourceRepository extends BaseResourceRepository {
 
     @Override
     public void write(String path, byte[] data) {
-        ObjectMetadata metadata;
-        try {
-            metadata = s3.getObjectMetadata(bucket, path);
-        } catch (Exception e) {
-            metadata = new ObjectMetadata();
-            String mimeType = URLConnection.guessContentTypeFromName(path);
-            if (mimeType != null) {
-                metadata.setContentType(mimeType);
-            }
-            metadata.setContentLength(data.length);
-        }
-        s3.putObject(bucket, path, new ByteArrayInputStream(data), metadata);
+        s3.putObject(bucket, path, new String(data, Charset.forName(CHAR_SET)));
     }