diff --git a/src/ios/SM_AFNetworking/SM_AFURLSessionManager.m b/src/ios/SM_AFNetworking/SM_AFURLSessionManager.m
index 6d922ed..781a2d5 100644
--- a/src/ios/SM_AFNetworking/SM_AFURLSessionManager.m
+++ b/src/ios/SM_AFNetworking/SM_AFURLSessionManager.m
@@ -511,6 +511,7 @@ static NSString * const AFNSURLSessionTaskDidSuspendNotification = @"com.alamofi
 
     if (!configuration) {
         configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
+        configuration.URLCache = nil;
     }
 
     self.sessionConfiguration = configuration;