diff --git a/Gemfile.lock b/Gemfile.lock
index bfa4808..d4235a1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,6 +7,7 @@ GIT
       activesupport (>= 3.0.0)
 
 GEM
+  remote: https://rubygems.org/
   specs:
     actioncable (5.2.1)
       actionpack (= 5.2.1)