diff --git a/exercises/rational-numbers/rational_numbers_test.py b/exercises/rational-numbers/rational_numbers_test.py
index 081feb2fec1..a7fe7812f5a 100644
--- a/exercises/rational-numbers/rational_numbers_test.py
+++ b/exercises/rational-numbers/rational_numbers_test.py
@@ -5,7 +5,7 @@
 from rational_numbers import Rational
 
 
-# Tests adapted from `problem-specifications//canonical-data.json` @ v1.0.0
+# Tests adapted from `problem-specifications//canonical-data.json` @ v1.1.0
 
 class RationalNumbersTest(unittest.TestCase):
 
@@ -71,9 +71,15 @@ def test_divide_by_one(self):
     def test_absolute_value_of_positive(self):
         self.assertEqual(abs(Rational(1, 2)), Rational(1, 2))
 
+    def test_absolute_value_of_positive_negative_numerator_denominator(self):
+        self.assertEqual(abs(Rational(-1, -2)), Rational(1, 2))
+
     def test_absolute_value_of_negative(self):
         self.assertEqual(abs(Rational(-1, 2)), Rational(1, 2))
 
+    def test_absolute_value_of_negative_with_negative_denominator(self):
+        self.assertEqual(abs(Rational(1, -2)), Rational(1, 2))
+
     def test_absolute_value_of_zero(self):
         self.assertEqual(abs(Rational(0, 1)), Rational(0, 1))