diff --git a/.rubocop_todo.yml b/.rubocop_todo.yml
index a4cf131691..641a7ec69a 100644
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -33,7 +33,6 @@ Style/FetchEnvVar:
   Exclude:
     - 'config/initializers/2_limited_federation_mode.rb'
     - 'config/initializers/paperclip.rb'
-    - 'lib/tasks/repo.rake'
 
 # This cop supports safe autocorrection (--autocorrect).
 # Configuration parameters: MinBodyLength, AllowConsecutiveConditionals.
diff --git a/lib/tasks/repo.rake b/lib/tasks/repo.rake
index c8f977f651..6c696a9097 100644
--- a/lib/tasks/repo.rake
+++ b/lib/tasks/repo.rake
@@ -57,7 +57,7 @@ namespace :repo do
                 response = nil
 
                 loop do
-                  response = HTTP.headers('Authorization' => "token #{ENV['GITHUB_API_TOKEN']}").get("https://api.github.com/repos/#{REPOSITORY_NAME}/pulls/#{pull_request_number}")
+                  response = HTTP.headers('Authorization' => "token #{ENV.fetch('GITHUB_API_TOKEN')}").get("https://api.github.com/repos/#{REPOSITORY_NAME}/pulls/#{pull_request_number}")
 
                   if response.code == 403
                     sleep_for = (response.headers['X-RateLimit-Reset'].to_i - Time.now.to_i).abs