diff --git a/Gemfile.lock b/Gemfile.lock
index a661dd6..8eb0415 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -98,7 +98,7 @@ GEM
     ruby-progressbar (1.11.0)
     ruby2_keywords (0.0.4)
     thread_safe (0.3.6)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext