Gemfile.lock in hot_module-1.0.0.alpha10 vs Gemfile.lock in hot_module-1.0.0.alpha11

@@ -1,8 +1,9 @@
 PATH
   remote: .
   specs:
-    hot_module (1.0.0.alpha10)
+    hot_module (1.0.0.alpha11)
+      concurrent-ruby (~> 1.2)
       nokolexbor (>= 0.4.2)
 
 GEM
   remote: https://rubygems.org/
   specs: