diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 144be9e5..b0741ac1 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -19,6 +19,8 @@ jobs:
         gemfile:
           [
             Gemfile,
+            gemfiles/Gemfile.rails-5.0.x,
+            gemfiles/Gemfile.rails-5.1.x,
             gemfiles/Gemfile.rails-5.2.x,
             gemfiles/Gemfile.rails-6.0.x,
             gemfiles/Gemfile.rails-6.1.x,