diff --git a/Gemfile.lock b/Gemfile.lock
index 7dcb547cb0..d2fa9a12a7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -83,7 +83,7 @@ GEM
     colored2 (3.1.2)
     commander (4.6.0)
       highline (~> 2.0.0)
-    concurrent-ruby (1.2.3)
+    concurrent-ruby (1.3.7)
     connection_pool (2.4.1)
     declarative (0.0.20)
     digest-crc (0.6.5)