diff --git a/Gemfile.lock b/Gemfile.lock
index 27fe2b4..a3f8e08 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -68,7 +68,7 @@ GEM
     cocoapods-try (1.2.0)
     colored2 (3.1.2)
     colorize (0.8.1)
-    concurrent-ruby (1.3.5)
+    concurrent-ruby (1.3.7)
     connection_pool (2.5.3)
     drb (2.2.3)
     escape (0.0.4)