diff --git a/Gemfile b/Gemfile
index cb921ee2..e0c1986f 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem 'grape', '~> 1.8.0'
 gem 'grape-entity', '~> 0.8.1'
 gem 'iso_country_codes'
 gem 'mongo', '~> 2.8.0'
-gem 'mongoid', '~> 6.0'
+gem 'mongoid', '~> 6.4'
 gem 'rake'
 gem 'require_all'
 gem 'rest-client'
diff --git a/Gemfile.lock b/Gemfile.lock
index f07e3668..dc47a8f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -154,7 +154,7 @@ DEPENDENCIES
   iso_country_codes
   minitest
   mongo (~> 2.8.0)
-  mongoid (~> 6.0)
+  mongoid (~> 6.4)
   rack-test
   rake
   require_all