diff --git a/iOS/4. MBurgerNewsRelation/Gemfile.lock b/iOS/4. MBurgerNewsRelation/Gemfile.lock
index 659269c..682d1aa 100644
--- a/iOS/4. MBurgerNewsRelation/Gemfile.lock	
+++ b/iOS/4. MBurgerNewsRelation/Gemfile.lock	
@@ -64,7 +64,7 @@ GEM
     netrc (0.11.0)
     ruby-macho (1.4.0)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.11)
       thread_safe (~> 0.1)
     xcodeproj (1.13.0)
       CFPropertyList (>= 2.3.3, < 4.0)