diff --git a/Gemfile.lock b/Gemfile.lock
index f46f06b..5212acc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -69,7 +69,7 @@ GEM
     sinatra-cross_origin (0.4.0)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     vcr (3.0.3)
     webmock (3.8.3)