我想更新 pod 'AFNetworking', '~> 4.0.1' ，但是我的终端显示以下错误，例如运行 pod install 命令
Specs satisfying the `AFNetworking/NSURLSession (= 4.0.1), AFNetworking/NSURLSession (~> 3.0)` dependency were found, but they required a higher minimum deployment target.
我的Podfile如下所示
pod 'AFOAuth2Manager', '~> 3.0'
pod 'AFNetworking', '~> 4.0.1'
如何解决此错误？