diff --git a/Gemfile.lock b/Gemfile.lock
index c39ff92..5480e5f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -171,7 +171,7 @@ GEM
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.60)
+    tzinfo (0.3.61)
     uuidtools (2.1.1)
     wirble (0.1.3)
     xpath (0.1.2)