diff --git a/Library/Homebrew/utils/github.rb b/Library/Homebrew/utils/github.rb
index 795cb17e8addea..400573856f2a73 100644
--- a/Library/Homebrew/utils/github.rb
+++ b/Library/Homebrew/utils/github.rb
@@ -562,6 +562,7 @@ def self.fetch_pull_requests(name, tap_remote_repo, state: nil, version: nil)
 
     pull_requests = []
     API.paginate_graphql(graphql_query, variables:) do |result|
+      return [] if result.nil?
       data = result["search"]
       pull_requests.concat(data["nodes"].select { |pr| regex.match?(pr["title"]) })
       data["pageInfo"]