diff --git a/Gemfile.lock b/Gemfile.lock
index 413021921..22ef7fa85 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -117,7 +117,7 @@ GEM
     coderay (1.1.3)
     coercible (1.0.0)
       descendants_tracker (~> 0.0.1)
-    concurrent-ruby (1.3.6)
+    concurrent-ruby (1.3.7)
     connection_pool (3.0.2)
     coveralls_reborn (0.29.0)
       simplecov (~> 0.22.0)