diff --git a/Gemfile b/Gemfile
index b8005d2..30a0f7a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -13,3 +13,6 @@ gemspec
 # To use a debugger
 # gem 'byebug', group: [:development, :test]
 
+gem 'rbnacl', '~> 3.4'
+gem 'rbnacl-libsodium'
+gem 'bcrypt_pbkdf', '~> 1.1'
\ No newline at end of file