diff --git a/test/functional/wallet_import_rescan.py b/test/functional/wallet_import_rescan.py
--- a/test/functional/wallet_import_rescan.py
+++ b/test/functional/wallet_import_rescan.py
@@ -19,9 +19,11 @@
 happened previously.
 """
 
+from decimal import Decimal
 import collections
 import enum
 import itertools
+import random
 
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
@@ -128,6 +130,13 @@
 # Rescans start at the earliest block up to 2 hours before the key timestamp.
 TIMESTAMP_WINDOW = 2 * 60 * 60
 
+AMOUNT_DUST = 0.00000546
+
+
+def get_rand_amount():
+    r = random.uniform(AMOUNT_DUST, 1)
+    return Decimal(str(round(r, 8)))
+
 
 class ImportRescanTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -164,7 +173,7 @@
             variant.address = self.nodes[1].getaddressinfo(
                 self.nodes[1].getnewaddress(variant.label))
             variant.key = self.nodes[1].dumpprivkey(variant.address["address"])
-            variant.initial_amount = 1 - (i + 1) / 64
+            variant.initial_amount = get_rand_amount()
             variant.initial_txid = self.nodes[0].sendtoaddress(
                 variant.address["address"], variant.initial_amount)
             # Generate one block for each send
@@ -200,7 +209,7 @@
 
         # Create new transactions sending to each address.
         for i, variant in enumerate(IMPORT_VARIANTS):
-            variant.sent_amount = 1 - (2 * i + 1) / 128
+            variant.sent_amount = get_rand_amount()
             variant.sent_txid = self.nodes[0].sendtoaddress(
                 variant.address["address"], variant.sent_amount)
             # Generate one block for each send