diff --git a/Gemfile.lock b/Gemfile.lock
index 5a0537c..09e002e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     sqlite3 (1.3.3)
     sqlite3-ruby (1.3.3)
       sqlite3 (>= 1.3.3)
-    tzinfo (0.3.25)
+    tzinfo (0.3.61)
 
 PLATFORMS
   ruby