diff --git a/README-zh.md b/README-zh.md
index f0935ca..6d6b6ef 100644
--- a/README-zh.md
+++ b/README-zh.md
@@ -1,5 +1,5 @@
 # ProgressManager
-[ ![Bintray](https://img.shields.io/badge/bintray-v1.3.1-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/progressmanager/1.3.1/link)
+[ ![Bintray](https://img.shields.io/badge/bintray-v1.3.3-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/progressmanager/1.3.3/link)
 [ ![Build Status](https://travis-ci.org/JessYanCoding/ProgressManager.svg?branch=master) ](https://travis-ci.org/JessYanCoding/ProgressManager)
 [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-ProgressManager-brightgreen.svg?style=flat)](https://android-arsenal.com/details/1/5865)
 [ ![API](https://img.shields.io/badge/API-14%2B-blue.svg?style=flat-square) ](https://developer.android.com/about/versions/android-4.0.html)
@@ -31,7 +31,7 @@
 
 ## Download
 ``` gradle
- compile 'me.jessyan:progressmanager:1.3.1'
+ compile 'me.jessyan:progressmanager:1.3.3'
 ```
 
 ## Usage
diff --git a/README.md b/README.md
index 5c8b210..639a093 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # ProgressManager
-[ ![Bintray](https://img.shields.io/badge/bintray-v1.3.1-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/progressmanager/1.3.1/link)
+[ ![Bintray](https://img.shields.io/badge/bintray-v1.3.3-brightgreen.svg) ](https://bintray.com/jessyancoding/maven/progressmanager/1.3.3/link)
 [ ![Build Status](https://travis-ci.org/JessYanCoding/ProgressManager.svg?branch=master) ](https://travis-ci.org/JessYanCoding/ProgressManager)
 [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-ProgressManager-brightgreen.svg?style=flat)](https://android-arsenal.com/details/1/5865)
 [ ![API](https://img.shields.io/badge/API-14%2B-blue.svg?style=flat-square) ](https://developer.android.com/about/versions/android-4.0.html)
@@ -30,7 +30,7 @@
 
 ## Download
 ``` gradle
- compile 'me.jessyan:progressmanager:1.3.1'
+ compile 'me.jessyan:progressmanager:1.3.3'
 ```
 
 ## Usage
diff --git a/app/build.gradle b/app/build.gradle
index e2eefba..484cf2a 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -26,9 +26,9 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     compile 'com.android.support:appcompat-v7:25.3.1'
-    compile 'com.squareup.okhttp3:okhttp:3.8.0'
+    compile 'com.squareup.okhttp3:okhttp:3.8.1'
     compile 'com.github.bumptech.glide:glide:3.8.0'
     compile 'com.github.bumptech.glide:okhttp3-integration:1.4.0@aar'
     compile project(':progress')
-//    compile 'me.jessyan:progressmanager:1.3.1'
+//    compile 'me.jessyan:progressmanager:1.3.3'
 }
diff --git a/build.gradle b/build.gradle
index 8a73e3a..52f8d77 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,6 +25,6 @@ ext {
     targetSdkVersion = 25
     compileSdkVersion = 25
     buildToolsVersion = "25.0.3"
-    versionCode = 14
-    versionName = "1.3.1"
+    versionCode = 16
+    versionName = "1.3.3"
 }
diff --git a/progress/build.gradle b/progress/build.gradle
index d3c4b83..f5a4e79 100644
--- a/progress/build.gradle
+++ b/progress/build.gradle
@@ -27,7 +27,7 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    provided 'com.squareup.okhttp3:okhttp:3.8.0'
+    provided 'com.squareup.okhttp3:okhttp:3.8.1'
 }
 
 apply from: 'bintray.gradle'
\ No newline at end of file
diff --git a/progress/src/main/java/me/jessyan/progressmanager/ProgressManager.java b/progress/src/main/java/me/jessyan/progressmanager/ProgressManager.java
index b1b979f..e5111a9 100644
--- a/progress/src/main/java/me/jessyan/progressmanager/ProgressManager.java
+++ b/progress/src/main/java/me/jessyan/progressmanager/ProgressManager.java
@@ -206,6 +206,8 @@ public Response wrapResponseBody(Response response) {
      */
     private boolean haveRedirect(Response response) {
         String status = response.header("Status");
+        if (TextUtils.isEmpty(status))
+            return false;
         if (status.contains("301") || status.contains("302") || status.contains("303") || status.contains("307")) {
             return true;
         }