diff --git a/spec/super_settings/rack_application_spec.rb b/spec/super_settings/rack_application_spec.rb
index d760149..6e3f6df 100644
--- a/spec/super_settings/rack_application_spec.rb
+++ b/spec/super_settings/rack_application_spec.rb
@@ -127,7 +127,7 @@ def current_user(request)
 
   describe "last_updated_at" do
     it "should have a REST endoint" do
-      time = Time.at(Time.now + 10.to_i)
+      time = SuperSettings::TimePrecision.new(Time.now + 10).time
       setting_1.updated_at = time
       setting_1.save!
       response = middleware.call("REQUEST_METHOD" => "GET", "SCRIPT_NAME" => "/prefix/last_updated_at")
diff --git a/spec/super_settings/rest_api_spec.rb b/spec/super_settings/rest_api_spec.rb
index 02e7170..401fcf6 100644
--- a/spec/super_settings/rest_api_spec.rb
+++ b/spec/super_settings/rest_api_spec.rb
@@ -126,7 +126,7 @@ def reload(setting)
 
   describe "last_updated_at" do
     it "should return the timestamp of the last updated setting" do
-      time = Time.at(Time.now + 10.to_i)
+      time = SuperSettings::TimePrecision.new(Time.now + 10).time
       setting_1.updated_at = time
       setting_1.save!
       response = SuperSettings::RestAPI.last_updated_at