diff --git a/Gemfile.lock b/Gemfile.lock
index eb10c8d..0415ad5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,7 +68,7 @@ GEM
       nokogiri (~> 1.8.2)
       xcodeproj (~> 1.4)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     xcodeproj (1.6.0)
       CFPropertyList (>= 2.3.3, < 4.0)