diff --git a/Gemfile.lock b/Gemfile.lock
index dfd841e..9c6da24 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,7 +35,7 @@ GEM
     awesome_print (1.9.2)
     base64 (0.3.0)
     bigdecimal (4.0.1)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     debug (1.9.1)
       irb (~> 1.10)