diff --git a/lib/bundler/fetcher.rb b/lib/bundler/fetcher.rb
index e07f925107..6fe047568f 100644
--- a/lib/bundler/fetcher.rb
+++ b/lib/bundler/fetcher.rb
@@ -226,6 +226,7 @@ module Bundler
         "GO_SERVER_URL" => "go",
         "SNAP_CI" => "snap",
         "GITLAB_CI" => "gitlab",
+        "GITHUB_ACTIONS" => "github",
         "CI_NAME" => ENV["CI_NAME"],
         "CI" => "ci",
       }