diff --git a/integration_tests/ibc_utils.py b/integration_tests/ibc_utils.py
index a002132329..7d42d892a5 100644
--- a/integration_tests/ibc_utils.py
+++ b/integration_tests/ibc_utils.py
@@ -26,6 +26,7 @@
 )
 
 RATIO = 10**10
+RELAYER_CALLER = "0x6F1805D56bF05b7be10857F376A5b1c160C8f72C"
 
 
 class Status(IntEnum):
@@ -191,7 +192,7 @@ def prepare_network(
                 send_transaction(w3, tx)
                 assert w3.eth.get_balance(sender, "latest") == fund
             caller = deploy_contract(w3, CONTRACTS["TestRelayer"], key=acc.key).address
-            assert caller == "0x6F1805D56bF05b7be10857F376A5b1c160C8f72C", caller
+            assert caller == RELAYER_CALLER, caller
             call_rly_cmd(path, connection_only, version)
 
         if incentivized:
@@ -428,6 +429,7 @@ def ibc_incentivized_transfer(ibc):
     amount = 1000
     fee_denom = "ibcfee"
     base_denom = "basetcro"
+    caller = eth_to_bech32(RELAYER_CALLER)
     old_amt_fee = chains[0].balance(relayer, fee_denom)
     old_amt_sender_fee = chains[0].balance(sender, fee_denom)
     old_amt_sender_base = chains[0].balance(sender, base_denom)
@@ -456,19 +458,19 @@ def ibc_incentivized_transfer(ibc):
         src_channel,
         packet_seq,
         recv_fee=fee,
-        ack_fee=fee,
+        # ack_fee=fee,
         timeout_fee=fee,
         from_=sender,
     )
     assert rsp["code"] == 0, rsp["raw_log"]
     # fee is locked
-    assert chains[0].balance(sender, fee_denom) == old_amt_sender_fee - 30
+    assert chains[0].balance(sender, fee_denom) == old_amt_sender_fee - 20
 
     # wait for relayer receive the fee
     def check_fee():
         amount = chains[0].balance(relayer, fee_denom)
         if amount > old_amt_fee:
-            assert amount == old_amt_fee + 20, amount
+            assert amount == old_amt_fee + 10, amount
             return True
         else:
             return False
@@ -479,7 +481,7 @@ def check_fee():
     actual = get_balances(ibc.cronos, sender)
     assert actual == [
         {"denom": base_denom, "amount": f"{old_amt_sender_base - amount}"},
-        {"denom": fee_denom, "amount": f"{old_amt_sender_fee - 20}"},
+        {"denom": fee_denom, "amount": f"{old_amt_sender_fee - 10}"},
     ], actual
     path = f"transfer/{dst_channel}/{base_denom}"
     denom_hash = hashlib.sha256(path.encode()).hexdigest().upper()
diff --git a/integration_tests/test_ibc_rly.py b/integration_tests/test_ibc_rly.py
index 908455dccc..843226b5cd 100644
--- a/integration_tests/test_ibc_rly.py
+++ b/integration_tests/test_ibc_rly.py
@@ -7,6 +7,7 @@
 
 from .ibc_utils import (
     RATIO,
+    RELAYER_CALLER,
     assert_duplicate,
     cronos_transfer_source_tokens,
     cronos_transfer_source_tokens_with_proxy,
@@ -59,6 +60,8 @@ def ibc(request, tmp_path_factory):
 
 
 def amount_dict(amt, denom):
+    if amt == 0:
+        return []
     return [
         AttributeDict(
             {
@@ -298,8 +301,8 @@ def test_ibc_incentivized_transfer(ibc):
         acknowledge_packet(seq0),
         distribute_fee(src_relayer, fee),
         *send_coins(feeibc_addr, src_relayer, src_amount, fee_denom),
-        distribute_fee(src_relayer, fee),
-        *send_coins(feeibc_addr, src_relayer, src_amount, fee_denom),
+        distribute_fee(RELAYER_CALLER, ""),
+        *send_coins(feeibc_addr, RELAYER_CALLER, 0, ""),
         distribute_fee(cronos_signer2, fee),
         *send_coins(feeibc_addr, cronos_signer2, src_amount, fee_denom),
         fungible(checksum_dst_adr, cronos_signer2, amount, dst_denom),
diff --git a/nix/sources.json b/nix/sources.json
index e5819624f1..385c2b27d3 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -135,13 +135,13 @@
     "relayer": {
         "branch": "main",
         "description": "An IBC relayer for ibc-go",
-        "homepage": "https://github.com/crypto-org-chain/relayer",
+        "homepage": "https://github.com/mmsqe/relayer",
         "owner": "crypto-org-chain",
         "repo": "relayer",
-        "rev": "bd88a2cba9154450924837ecda915688ff8f9e04",
-        "sha256": "106mf4mc2ag4a5d21lcqpsq7ixvq70097jglw862jz4g9lbxyv8f",
+        "rev": "baa9a467d7d533eb65acbd91ca9e2cdfd22be15d",
+        "sha256": "0rzvr3px3adq6q9v4v4676jvlkz9zngxmzikpkli4p6sc62lxph3",
         "type": "tarball",
-        "url": "https://github.com/crypto-org-chain/relayer/archive/bd88a2cba9154450924837ecda915688ff8f9e04.tar.gz",
+        "url": "https://github.com/mmsqe/relayer/archive/baa9a467d7d533eb65acbd91ca9e2cdfd22be15d.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }