diff --git a/Gemfile.lock b/Gemfile.lock
index a7f751a..0fd1dc9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -53,7 +53,7 @@ GEM
       netrc (~> 0.11)
     cocoapods-try (1.2.0)
     colored2 (3.1.2)
-    concurrent-ruby (1.1.9)
+    concurrent-ruby (1.3.6)
     escape (0.0.4)
     ethon (0.14.0)
       ffi (>= 1.15.0)