diff --git a/Gemfile.lock b/Gemfile.lock
index 7f50091..ca80f12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -85,7 +85,7 @@ GEM
     sinatra-cross_origin (0.4.0)
     thread_safe (0.3.6)
     tilt (2.0.8)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.7.0)
     vpim (13.11.11)