diff --git a/Gemfile b/Gemfile
index 6691765ae..ce9f9495c 100644
--- a/Gemfile
+++ b/Gemfile
@@ -64,7 +64,8 @@ group :development, :test do
   gem "simplecov", require: false
 
   # Generate test objects.
-  gem "factory_bot_rails"
+  # 6.3.0 and 6.4.0 have a bug https://github.com/thoughtbot/factory_bot_rails/issues/433
+  gem "factory_bot_rails", "~> 6.2", "!= 6.3.0", "!= 6.4.0"
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index 2201c9930..8c27605f2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -666,7 +666,7 @@ DEPENDENCIES
   debug
   devise
   devise-two-factor
-  factory_bot_rails
+  factory_bot_rails (~> 6.2, != 6.4.0, != 6.3.0)
   foreman
   honeybadger
   jbuilder