diff --git a/Gemfile.lock b/Gemfile.lock
index 4e59ba6..e68ee36 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -153,7 +153,7 @@ GEM
     sqlite3 (1.3.13)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)