diff --git a/Gemfile.lock b/Gemfile.lock
index 7ef2631..60d8a81 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -64,7 +64,7 @@ GEM
       rack (>= 1, < 3)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (2.0.0)