diff --git a/test/models/session_test.rb b/test/models/session_test.rb
index 5494b76..e20618a 100644
--- a/test/models/session_test.rb
+++ b/test/models/session_test.rb
@@ -12,7 +12,7 @@ class SessionTest < ActiveSupport::TestCase
   def test_save_when_not_exists
     session = Session.new(email: "fake@example.org", password: "secret")
 
-    refute session.save
+    assert_not session.save
   end
 
   def test_save_when_password_incorrect
@@ -20,6 +20,6 @@ class SessionTest < ActiveSupport::TestCase
 
     session = Session.new(email: user.email, password: "bad_password")
 
-    refute session.save
+    assert_not session.save
   end
 end