diff --git a/example_files/Gemfile b/example_files/Gemfile
index 0e28fd37..0e226d6a 100644
--- a/example_files/Gemfile
+++ b/example_files/Gemfile
@@ -1,4 +1,4 @@
-source 'https://rubygems.org'
+source 'http://rubygems.org'
 
 ruby '~> 2.7.0'