diff --git a/bundler/lib/dependabot/bundler/file_updater/gemspec_sanitizer.rb b/bundler/lib/dependabot/bundler/file_updater/gemspec_sanitizer.rb
index 5478f114ac..8c7eb00f2a 100644
--- a/bundler/lib/dependabot/bundler/file_updater/gemspec_sanitizer.rb
+++ b/bundler/lib/dependabot/bundler/file_updater/gemspec_sanitizer.rb
@@ -1,4 +1,4 @@
-# typed: strong
+# typed: strict
 # frozen_string_literal: true
 
 require "parser/current"