diff --git a/Gemfile.lock b/Gemfile.lock
index 3e0aeb4..f0758a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -11,6 +11,7 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
     colored (1.2)
+    concurrent-ruby (1.1.10)
     ethon (0.8.1)
       ffi (>= 1.3.0)
     ffi (1.15.3)
@@ -24,7 +25,8 @@ GEM
       parallel (~> 1.3)
       typhoeus (~> 0.7)
       yell (~> 2.0)
-    i18n (0.7.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
     jekyll (3.6.3)
       addressable (~> 2.4)
       colorator (~> 1.0)