diff --git a/Example/android/app/build.gradle b/Example/android/app/build.gradle
index 99efe88..b64e28d 100644
--- a/Example/android/app/build.gradle
+++ b/Example/android/app/build.gradle
@@ -137,11 +137,11 @@ android {
 }
 
 dependencies {
-    compile project(':react-native-image-picker')
-    compile project(':aliyun-oss-react-native')
-    compile fileTree(dir: "libs", include: ["*.jar"])
-    compile "com.android.support:appcompat-v7:23.0.1"
-    compile "com.facebook.react:react-native:+"  // From node_modules
+    implementation project(':react-native-image-picker')
+    implementation project(':aliyun-oss-react-native')
+    implementation fileTree(dir: "libs", include: ["*.jar"])
+    implementation "com.android.support:appcompat-v7:23.0.1"
+    implementation "com.facebook.react:react-native:+"  // From node_modules
 }
 
 // Run this once to be able to run the application with BUCK
diff --git a/android/build.gradle b/android/build.gradle
index 261655d..e405066 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -31,7 +31,7 @@ repositories {
 }
 
 dependencies {
-    compile 'com.facebook.react:react-native:+'
-    compile 'com.aliyun.dpa:oss-android-sdk:+'
+    implementation 'com.facebook.react:react-native:+'
+    implementation 'com.aliyun.dpa:oss-android-sdk:+'
 }
-  
\ No newline at end of file
+  
diff --git a/android/src/main/java/com/reactlibrary/AliyunUploadManager.java b/android/src/main/java/com/reactlibrary/AliyunUploadManager.java
index 2d08bfa..a852643 100644
--- a/android/src/main/java/com/reactlibrary/AliyunUploadManager.java
+++ b/android/src/main/java/com/reactlibrary/AliyunUploadManager.java
@@ -94,7 +94,8 @@ public void asyncUpload(final ReactContext context, String bucketName, String os
         // init upload request
         PutObjectRequest put = new PutObjectRequest(bucketName, ossFile, sourceFile);
         ObjectMetadata metadata = new ObjectMetadata();
-        metadata.setContentType("application/octet-stream");
+
+        metadata.setContentType(options.hasKey("content-type") ? options.getString("content-type") : "application/octet-stream");
         put.setMetadata(metadata);
 
         // set callback