diff --git a/Gemfile.lock b/Gemfile.lock
index 4b47b25..b64c054 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -616,7 +616,7 @@ GEM
       unf (~> 0.1.0)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2018.5)
+    tzinfo-data (1.2018.6)
       tzinfo (>= 1.0.0)
     unf (0.1.4)
       unf_ext