diff --git a/YTKNetwork.podspec b/YTKNetwork.podspec
index dcb50b4..7c733b4 100644
--- a/YTKNetwork.podspec
+++ b/YTKNetwork.podspec
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
 
   s.name         = "YTKNetwork"
-  s.version      = "2.0.6"
+  s.version      = "2.1.2"
   s.summary      = "YTKNetwork is a high level request util based on AFNetworking."
   s.homepage     = "https://github.com/yuantiku/YTKNetwork"
   s.license      = "MIT"
@@ -9,7 +9,8 @@ Pod::Spec.new do |s|
                     "tangqiao" => "tangqiao@fenbi.com",
                     "lancy" => "lancy@fenbi.com",
                     "maojj" => "maojj@fenbi.com",
-                    "liujl" => "liujl@fenbi.com"
+                    "liujl" => "liujl@fenbi.com",
+                    "shangcr" => "shangcr@fenbi.com"
  }
   s.source        = { :git => "https://github.com/yuantiku/YTKNetwork.git", :tag => s.version.to_s }
   s.source_files  = "YTKNetwork/*.{h,m}"
@@ -23,5 +24,5 @@ Pod::Spec.new do |s|
   s.tvos.deployment_target = "9.0"
   s.framework = "CFNetwork"
 
-  s.dependency "AFNetworking", "~> 3.0"
+  s.dependency "AFNetworking/NSURLSession", "~> 3.0"
 end
diff --git a/YTKNetwork/YTKBaseRequest.m b/YTKNetwork/YTKBaseRequest.m
index 828b01f..4086192 100644
--- a/YTKNetwork/YTKBaseRequest.m
+++ b/YTKNetwork/YTKBaseRequest.m
@@ -25,12 +25,6 @@
 #import "YTKNetworkAgent.h"
 #import "YTKNetworkPrivate.h"
 
-#if __has_include(<AFNetworking/AFNetworking.h>)
-#import <AFNetworking/AFNetworking.h>
-#else
-#import "AFNetworking.h"
-#endif
-
 NSString *const YTKRequestValidationErrorDomain = @"com.yuantiku.request.validation";
 
 @interface YTKBaseRequest ()
diff --git a/YTKNetwork/YTKNetworkAgent.m b/YTKNetwork/YTKNetworkAgent.m
index 9345037..99f32d2 100644
--- a/YTKNetwork/YTKNetworkAgent.m
+++ b/YTKNetwork/YTKNetworkAgent.m
@@ -26,10 +26,10 @@
 #import "YTKNetworkPrivate.h"
 #import <pthread/pthread.h>
 
-#if __has_include(<AFNetworking/AFNetworking.h>)
-#import <AFNetworking/AFNetworking.h>
+#if __has_include(<AFNetworking/AFHTTPSessionManager.h>)
+#import <AFNetworking/AFHTTPSessionManager.h>
 #else
-#import "AFNetworking.h"
+#import "AFHTTPSessionManager.h"
 #endif
 
 #define Lock() pthread_mutex_lock(&_lock)
diff --git a/YTKNetwork/YTKNetworkConfig.m b/YTKNetwork/YTKNetworkConfig.m
index ac5cdf7..751adc6 100644
--- a/YTKNetwork/YTKNetworkConfig.m
+++ b/YTKNetwork/YTKNetworkConfig.m
@@ -24,10 +24,10 @@
 #import "YTKNetworkConfig.h"
 #import "YTKBaseRequest.h"
 
-#if __has_include(<AFNetworking/AFNetworking.h>)
-#import <AFNetworking/AFNetworking.h>
+#if __has_include(<AFNetworking/AFSecurityPolicy.h>)
+#import <AFNetworking/AFSecurityPolicy.h>
 #else
-#import "AFNetworking.h"
+#import "AFSecurityPolicy.h"
 #endif
 
 @implementation YTKNetworkConfig {
diff --git a/YTKNetworkDemo/YTKNetworkDemo/UploadImageApi.m b/YTKNetworkDemo/YTKNetworkDemo/UploadImageApi.m
index a2f3ce5..500d6a6 100644
--- a/YTKNetworkDemo/YTKNetworkDemo/UploadImageApi.m
+++ b/YTKNetworkDemo/YTKNetworkDemo/UploadImageApi.m
@@ -7,7 +7,7 @@
 //
 
 #import "UploadImageApi.h"
-#import "AFNetworking.h"
+#import <AFNetworking/AFURLRequestSerialization.h>
 
 @implementation UploadImageApi {
     UIImage *_image;