diff --git a/test/functional/p2p_instantsend.py b/test/functional/p2p_instantsend.py
index ff184c2745b7..8dd14eb35cd7 100755
--- a/test/functional/p2p_instantsend.py
+++ b/test/functional/p2p_instantsend.py
@@ -139,10 +139,7 @@ def test_instantsend_after_restart(self):
         receiver = self.nodes[self.receiver_idx]
         sender_addr = sender.getnewaddress()
         fund_id = self.nodes[0].sendtoaddress(sender_addr, 1)
-        self.bump_mocktime(30)
-        self.sync_mempools()
-        for node in self.nodes:
-            self.wait_for_instantlock(fund_id, node)
+        self.wait_for_instantlock(fund_id)
         tip = self.generate(self.nodes[0], 2)[-1]
         self.bump_mocktime(30)
         self.wait_for_chainlocked_block_all_nodes(tip)
@@ -199,10 +196,7 @@ def check_mn_peers(node=mn_node, my_hash=mn_info.proTxHash):
 
         # send a TX — needs IS lock from all restarted MNs, no new blocks mined
         is_id = sender.sendtoaddress(receiver_addr, 0.5)
-        self.bump_mocktime(30)
-        self.sync_mempools()
-        for node in self.nodes:
-            self.wait_for_instantlock(is_id, node)
+        self.wait_for_instantlock(is_id)
         self.log.info("InstantSend lock succeeded after full restart")
 
         # clean up