diff --git a/website/Gemfile.lock b/website/Gemfile.lock
index c96b5ce..4292fdf 100644
--- a/website/Gemfile.lock
+++ b/website/Gemfile.lock
@@ -139,7 +139,7 @@ GEM
     turbolinks (5.1.0)
       turbolinks-source (~> 5.1)
     turbolinks-source (5.1.0)
-    tzinfo (1.2.4)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.6.5)
       websocket-extensions (>= 0.1.0)