diff --git a/Gemfile.lock b/Gemfile.lock
index bb4da64..7618235 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,7 +48,7 @@ GEM
     thor (0.20.3)
     thread_safe (0.3.6)
     tiny_tds (2.1.2)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     unicode-display_width (1.6.1)