diff --git a/tests/test_reports_related_postings.py b/tests/test_reports_related_postings.py
index 6707a2414ed8626cfc0375695511341368750b31..d014a941a10e6cc0f3773582ed4d18bea299ca7c 100644
--- a/tests/test_reports_related_postings.py
+++ b/tests/test_reports_related_postings.py
@@ -90,7 +90,7 @@ def test_balance_credit_card(credit_card_cycle, index, expected):
     related = core.RelatedPostings(
         txn.postings[0] for txn in credit_card_cycle[:index + 1]
     )
-    assert related.balance() == testutil.balance_map(USD=expected)
+    assert related.balance() == {'USD': testutil.Amount(expected, 'USD')}
 
 def check_iter_with_balance(entries):
     expect_posts = [txn.postings[0] for txn in entries]
@@ -99,7 +99,8 @@ def check_iter_with_balance(entries):
     for post in expect_posts:
         number, currency = post.units
         balance_tally[currency] += number
-        expect_balances.append(testutil.balance_map(balance_tally.items()))
+        expect_balances.append({code: testutil.Amount(number, code)
+                                for code, number in balance_tally.items()})
     related = core.RelatedPostings(expect_posts)
     for (post, balance), exp_post, exp_balance in zip(
             related.iter_with_balance(),