diff --git a/config/initializers/zxcvbn.rb b/config/initializers/zxcvbn.rb
new file mode 100644
index 000000000..bf725f993
--- /dev/null
+++ b/config/initializers/zxcvbn.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+path = Rails.root.join("config/words_fr_frequency_list.txt")
+lines = path.readlines.map(&:strip)
+filename = File.basename(path, ".*")
+
+new_ranked_dictionary = Hash[filename, Zxcvbn::Matching.build_ranked_dict(lines)]
+# Zxcvbn::Matching::RANKED_DICTIONARIES.merge! new_ranked_dictionary
+Zxcvbn::Matching::RANKED_DICTIONARIES = new_ranked_dictionary
diff --git a/config/words_fr_frequency_list.txt b/config/words_fr_frequency_list.txt
new file mode 100644
index 000000000..fa53d2086
--- /dev/null
+++ b/config/words_fr_frequency_list.txt
@@ -0,0 +1,4 @@
+password
+00000000
+test
+azerty