diff --git a/schedules/Gemfile.lock b/schedules/Gemfile.lock
index daf756d..d5727d5 100644
--- a/schedules/Gemfile.lock
+++ b/schedules/Gemfile.lock
@@ -220,7 +220,7 @@ GEM
     turbolinks (5.2.1)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (4.2.0)
       execjs (>= 0.3.0, < 3)