diff --git a/test_runner/regress/test_replica_promote.py b/test_runner/regress/test_replica_promote.py
index 82d0e8d6e9..4e26de9f7a 100644
--- a/test_runner/regress/test_replica_promote.py
+++ b/test_runner/regress/test_replica_promote.py
@@ -89,12 +89,14 @@ def test_replica_promotes(neon_simple_env: NeonEnv, pg_version: PgVersion):
     assert new_primary_cur.fetchone() == (200,)
 
     new_primary.stop(mode="immediate")
+    new_primary.respec(mode="Primary")
     new_primary.start()
 
     with new_primary.connect() as new_primary_conn:
         new_primary_cur = new_primary_conn.cursor()
         new_primary_cur.execute("select count(*) from t")
         assert new_primary_cur.fetchone() == (200,)
+        new_primary_cur.execute("INSERT INTO t (payload) SELECT generate_series(201, 300)")
 
     new_primary.stop()
     old_primary.start()
@@ -102,4 +104,7 @@ def test_replica_promotes(neon_simple_env: NeonEnv, pg_version: PgVersion):
     with old_primary.connect() as old_primary_conn:
         old_primary_cur = old_primary_conn.cursor()
         old_primary_cur.execute("select count(*) from t")
-        assert old_primary_cur.fetchone() == (200,)
+        assert old_primary_cur.fetchone() == (300,)
+        old_primary_cur.execute("INSERT INTO t (payload) SELECT generate_series(301, 400)")
+        old_primary_cur.execute("select count(*) from t")
+        assert old_primary_cur.fetchone() == (400,)
diff --git a/vendor/postgres-v14 b/vendor/postgres-v14
index 55c0d45abe..e93ddb2de1 160000
--- a/vendor/postgres-v14
+++ b/vendor/postgres-v14
@@ -1 +1 @@
-Subproject commit 55c0d45abe6467c02084c2192bca117eda6ce1e7
+Subproject commit e93ddb2de1d0696d16759efb5fe86e0c8aa7d9e2
diff --git a/vendor/postgres-v15 b/vendor/postgres-v15
index de7640f55d..f2cd317375 160000
--- a/vendor/postgres-v15
+++ b/vendor/postgres-v15
@@ -1 +1 @@
-Subproject commit de7640f55da07512834d5cc40c4b3fb376b5f04f
+Subproject commit f2cd31737536218c39c66f920ff62f72c51d0d61
diff --git a/vendor/postgres-v16 b/vendor/postgres-v16
index 0bf96bd6d7..3d6896afaa 160000
--- a/vendor/postgres-v16
+++ b/vendor/postgres-v16
@@ -1 +1 @@
-Subproject commit 0bf96bd6d70301a0b43b0b3457bb3cf8fb43c198
+Subproject commit 3d6896afaa89c05b693e9a29275001b801b8b479