diff --git a/test_runner/batch_others/test_pageserver_api.py b/test_runner/batch_others/test_pageserver_api.py
index 7fe3b4dff5..2b0e5ae8bd 100644
--- a/test_runner/batch_others/test_pageserver_api.py
+++ b/test_runner/batch_others/test_pageserver_api.py
@@ -1,11 +1,14 @@
+from typing import Optional
 from uuid import uuid4, UUID
 import pytest
+from fixtures.utils import lsn_from_hex
 from fixtures.zenith_fixtures import (
     DEFAULT_BRANCH_NAME,
     ZenithEnv,
     ZenithEnvBuilder,
     ZenithPageserverHttpClient,
     ZenithPageserverApiException,
+    wait_until,
 )
 
 
@@ -73,18 +76,35 @@ def test_pageserver_http_get_wal_receiver_success(zenith_simple_env: ZenithEnv):
     tenant_id, timeline_id = env.zenith_cli.create_tenant()
     pg = env.postgres.create_start(DEFAULT_BRANCH_NAME, tenant_id=tenant_id)
 
-    res = client.wal_receiver_get(tenant_id, timeline_id)
-    assert list(res.keys()) == [
-        "thread_id",
-        "wal_producer_connstr",
-        "last_received_msg_lsn",
-        "last_received_msg_ts",
-    ]
+    def expect_updated_msg_lsn(prev_msg_lsn: Optional[int]) -> int:
+        res = client.wal_receiver_get(tenant_id, timeline_id)
 
-    # make a DB modification then expect getting a new WAL receiver's data
+        # a successful `wal_receiver_get` response must contain the below fields
+        assert list(res.keys()) == [
+            "thread_id",
+            "wal_producer_connstr",
+            "last_received_msg_lsn",
+            "last_received_msg_ts",
+        ]
+
+        assert res["last_received_msg_lsn"] is not None, "the last received message's LSN is empty"
+
+        last_msg_lsn = lsn_from_hex(res["last_received_msg_lsn"])
+        assert prev_msg_lsn is None or prev_msg_lsn < last_msg_lsn, \
+            f"the last received message's LSN {last_msg_lsn} hasn't been updated \
+            compared to the previous message's LSN {prev_msg_lsn}"
+
+        return last_msg_lsn
+
+    # Wait to make sure that we get a latest WAL receiver data.
+    # We need to wait here because it's possible that we don't have access to
+    # the latest WAL during the time the `wal_receiver_get` API is called.
+    # See: https://github.com/neondatabase/neon/issues/1768.
+    lsn = wait_until(number_of_iterations=5, interval=1, func=lambda: expect_updated_msg_lsn(None))
+
+    # Make a DB modification then expect getting a new WAL receiver's data.
     pg.safe_psql("CREATE TABLE t(key int primary key, value text)")
-    res2 = client.wal_receiver_get(tenant_id, timeline_id)
-    assert res2["last_received_msg_lsn"] > res["last_received_msg_lsn"]
+    wait_until(number_of_iterations=5, interval=1, func=lambda: expect_updated_msg_lsn(lsn))
 
 
 def test_pageserver_http_api_client(zenith_simple_env: ZenithEnv):