diff --git a/Gemfile.lock b/Gemfile.lock
index c63f9ef..36128da 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -33,7 +33,7 @@ GEM
     rspec-support (3.8.2)
     safe_yaml (1.0.5)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     vcr (5.0.0)
     webmock (3.6.2)