diff --git a/Gemfile.lock b/Gemfile.lock
index 249abd4..b1d0740 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,7 +4,7 @@ GEM
     addressable (2.5.2)
       public_suffix (>= 2.0.2, < 4.0)
     daemons (1.2.6)
-    date (1.0.0)
+    date (2.0.1)
     em-websocket (0.3.8)
       addressable (>= 2.1.1)
       eventmachine (>= 0.12.9)