diff --git a/Gemfile.lock b/Gemfile.lock
index 3cd24dc..8007f75 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.1.1)
+    concurrent-ruby (1.1.2)
     contracts (0.16.0)
     crass (1.0.4)
     cucumber (3.1.2)