diff --git a/Gemfile.lock b/Gemfile.lock
index 784c64b..8bc4f02 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -49,7 +49,7 @@ GEM
     turn (0.9.7)
       ansi
       minitest (~> 4)
-    tzinfo (0.3.48)
+    tzinfo (0.3.61)
 
 PLATFORMS
   ruby