diff --git a/bittensor_cli/src/bittensor/subtensor_interface.py b/bittensor_cli/src/bittensor/subtensor_interface.py
index e3507d30..383e7f43 100644
--- a/bittensor_cli/src/bittensor/subtensor_interface.py
+++ b/bittensor_cli/src/bittensor/subtensor_interface.py
@@ -1249,6 +1249,9 @@ async def create_signed(call_to_sign, n):
             )
         inner_hash = ""
         if mev_protection:
+            max_mev_era = 8
+            if era is not None and era["period"] > max_mev_era:
+                era = {"period": max_mev_era}
             next_nonce = await self.substrate.get_account_next_index(
                 keypair.ss58_address
             )
diff --git a/tests/e2e_tests/test_coldkey_swap.py b/tests/e2e_tests/test_coldkey_swap.py
index 276d709a..b91fb543 100644
--- a/tests/e2e_tests/test_coldkey_swap.py
+++ b/tests/e2e_tests/test_coldkey_swap.py
@@ -272,6 +272,7 @@ def test_coldkey_swap_dispute(local_chain, wallet_setup):
             "Created for e2e coldkey swap dispute test",
             "--no-prompt",
             "--json-output",
+            "--no-mev-protection",
         ],
     )
     create_payload = json.loads(create_sn.stdout)
@@ -403,6 +404,7 @@ def test_coldkey_swap_dispute(local_chain, wallet_setup):
             "--new-coldkey",
             wallet_new.coldkeypub.ss58_address,
             "--no-prompt",
+            "--no-mev-protection",
         ],
     )
     assert "ColdkeySwapDisputed" in execute.stderr, execute.stderr