diff --git a/Gemfile.lock b/Gemfile.lock
index b1e447f..abc10cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -282,11 +282,12 @@ GEM
     tilt (2.0.10)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.9)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.8.2)
+    unf_ext (0.0.8.2-x64-mingw32)
     unicode-display_width (1.8.0)
     webrick (1.7.0)
     yell (2.2.2)