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 28d95e2..51db511 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
@@ -47,16 +47,16 @@ public class S3ResourceRepository extends BaseResourceRepository {
         BasicAWSCredentials credentials = new BasicAWSCredentials(config.getAccessKeyId(), config.getPassword());
         AmazonS3ClientBuilder amazonS3ClientBuilder = AmazonS3ClientBuilder.standard()
                 .withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(config.getEndPoint(), config.getRegion()))
-                .withCredentials(new AWSStaticCredentialsProvider(credentials));
+                .withCredentials(new AWSStaticCredentialsProvider(credentials)).disableChunkedEncoding();
         if (config.isEnablePathStyleAccess()) {
             amazonS3ClientBuilder = amazonS3ClientBuilder.enablePathStyleAccess();
         }
+        ClientConfiguration clientConfiguration = new ClientConfiguration();
         if (StringUtils.isNotEmpty(config.getSignerOverride())) {
-            ClientConfiguration clientConfiguration = new ClientConfiguration();
             clientConfiguration.setSignerOverride(config.getSignerOverride());
-            clientConfiguration.setProtocol(Protocol.HTTP);
-            amazonS3ClientBuilder = amazonS3ClientBuilder.withClientConfiguration(clientConfiguration);
         }
+        clientConfiguration.setProtocol(Protocol.HTTP);
+        amazonS3ClientBuilder = amazonS3ClientBuilder.withClientConfiguration(clientConfiguration);
         this.s3 = amazonS3ClientBuilder.build();
         this.bucket = config.getBucket();
     }