diff --git a/Gemfile.lock b/Gemfile.lock
index c0b84ff..72e589d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -237,7 +237,7 @@ GEM
     thor (1.0.1)
     thread_safe (0.3.6)
     tilt (2.0.10)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     web-console (4.0.2)
       actionview (>= 6.0.0)