diff --git a/Gemfile.lock b/Gemfile.lock
index 3fb42d3..895fe33 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -50,7 +50,7 @@ GEM
       netrc (~> 0.11)
     cocoapods-try (1.1.0)
     colored2 (3.1.2)
-    concurrent-ruby (1.1.6)
+    concurrent-ruby (1.3.7)
     escape (0.0.4)
     ethon (0.12.0)
       ffi (>= 1.3.0)