diff --git a/Gemfile.lock b/Gemfile.lock
index 5575292..059066a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
     thor (0.16.0)
     tilt (1.3.3)
     timecop (0.4.5)
-    tzinfo (0.3.33)
+    tzinfo (0.3.61)
 
 PLATFORMS
   ruby