diff --git a/test/functional/p2p_ibd_txrelay.py b/test/functional/p2p_ibd_txrelay.py
--- a/test/functional/p2p_ibd_txrelay.py
+++ b/test/functional/p2p_ibd_txrelay.py
@@ -8,7 +8,6 @@
 
 from test_framework.messages import XEC
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal
 
 MAX_FEE_FILTER = Decimal(9170997) / XEC
 NORMAL_FEE_FILTER = Decimal(100) / XEC
@@ -28,8 +27,8 @@
             "Check that nodes set minfilter to MAX_MONEY while still in IBD")
         for node in self.nodes:
             assert node.getblockchaininfo()['initialblockdownload']
-            for conn_info in node.getpeerinfo():
-                assert_equal(conn_info['minfeefilter'], MAX_FEE_FILTER)
+            self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER
+                                        for peer in node.getpeerinfo()))
 
         # Come out of IBD by generating a block
         self.nodes[0].generate(1)
@@ -39,8 +38,9 @@
             "Check that nodes reset minfilter after coming out of IBD")
         for node in self.nodes:
             assert not node.getblockchaininfo()['initialblockdownload']
-            for conn_info in node.getpeerinfo():
-                assert_equal(conn_info['minfeefilter'], NORMAL_FEE_FILTER)
+            self.wait_until(
+                lambda: all(peer['minfeefilter'] == NORMAL_FEE_FILTER
+                            for peer in node.getpeerinfo()))
 
 
 if __name__ == '__main__':
diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py
--- a/test/functional/test_framework/test_framework.py
+++ b/test/functional/test_framework/test_framework.py
@@ -33,6 +33,7 @@
     p2p_port,
     PortSeed,
     rpc_port,
+    wait_until,
 )
 
 
@@ -602,6 +603,10 @@
         self.sync_blocks(nodes)
         self.sync_mempools(nodes)
 
+    def wait_until(self, test_function, timeout=60, lock=None):
+        return wait_until(test_function, timeout=timeout, lock=lock,
+                          timeout_factor=self.options.timeout_factor)
+
     # Private helper methods. These should not be accessed by the subclass
     # test scripts.