diff --git a/MASFoundation/Classes/_private_/services/network/MASNetworkingService.m b/MASFoundation/Classes/_private_/services/network/MASNetworkingService.m
index c213098..39e90ac 100644
--- a/MASFoundation/Classes/_private_/services/network/MASNetworkingService.m
+++ b/MASFoundation/Classes/_private_/services/network/MASNetworkingService.m
@@ -63,7 +63,7 @@ @interface MASNetworkingService ()
 @property (nonatomic, strong, readwrite) MASURLSessionManager *sessionManager;
 @property (nonatomic, strong, readwrite) MASNetworkReachability *gatewayReachabilityManager;
 @property (readwrite, nonatomic, strong) MASAuthValidationOperation *authValidationOperation;
-@property (nonatomic, strong) NSMutableDictionary* tasks;
+@property (atomic, strong) NSMutableDictionary* tasks;
 
 @end