diff --git a/pyproject.toml b/pyproject.toml
index e9a9a05..6b9427c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "vertex-protocol"
-version = "2.1.7"
+version = "2.1.8"
 description = "Vertex Protocol SDK"
 authors = ["Jeury Mejia <jeury@vertexprotocol.com>"]
 homepage = "https://vertexprotocol.com/"
diff --git a/sanity/engine_client.py b/sanity/engine_client.py
index 3b15e22..6c0b136 100644
--- a/sanity/engine_client.py
+++ b/sanity/engine_client.py
@@ -62,13 +62,15 @@ def run():
     btc_perp = client.get_symbols(product_ids=[2])
     pprint(btc_perp)
 
+    order_price = 100_000
+
     print("placing order...")
     product_id = 1
     order = OrderParams(
         sender=SubaccountParams(
             subaccount_owner=client.signer.address, subaccount_name="default"
         ),
-        priceX18=to_x18(60000),
+        priceX18=to_x18(order_price),
         amount=to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.DEFAULT, int(time.time()) + 40),
         nonce=gen_order_nonce(),
@@ -86,7 +88,7 @@ def run():
         sender=SubaccountParams(
             subaccount_owner=client.signer.address, subaccount_name="default"
         ),
-        priceX18=to_x18(60000),
+        priceX18=to_x18(order_price),
         amount=to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.DEFAULT, int(time.time()) + 40),
         nonce=gen_order_nonce(),
@@ -147,7 +149,7 @@ def run():
         QueryMaxOrderSizeParams(
             sender=sender,
             product_id=product_id,
-            price_x18=to_x18(60000),
+            price_x18=to_x18(order_price),
             direction="short",
         )
     )
@@ -183,8 +185,8 @@ def run():
         ),
         productId=3,
         amountBase=to_x18(1),
-        quoteAmountLow=to_x18(1000),
-        quoteAmountHigh=to_x18(2000),
+        quoteAmountLow=to_x18(2000),
+        quoteAmountHigh=to_x18(4000),
     )
     res = client.mint_lp(mint_lp_params)
     print("mint lp results:", res.json(indent=2))
@@ -196,7 +198,13 @@ def run():
         ),
         productId=3,
         amount=to_x18(1),
-        nonce=client.tx_nonce(),
+        nonce=client.tx_nonce(
+            subaccount_to_hex(
+                SubaccountParams(
+                    subaccount_owner=client.signer.address, subaccount_name="default"
+                )
+            )
+        ),
     )
     res = client.burn_lp(burn_lp_params)
     print("burn lp result:", res.json(indent=2))
@@ -249,7 +257,7 @@ def run():
             sender=SubaccountParams(
                 subaccount_owner=client.signer.address, subaccount_name="default"
             ),
-            priceX18=to_x18(60000),
+            priceX18=to_x18(order_price),
             amount=to_pow_10(1, 17),
             expiration=get_expiration_timestamp(
                 OrderType.DEFAULT, int(time.time()) + 40
diff --git a/sanity/vertex_client.py b/sanity/vertex_client.py
index d07c21d..75b22bd 100644
--- a/sanity/vertex_client.py
+++ b/sanity/vertex_client.py
@@ -73,6 +73,8 @@ def run():
         )
         time.sleep(1)
 
+    order_price = 95_000
+
     owner = client.context.engine_client.signer.address
     print("placing order...")
     product_id = 1
@@ -81,7 +83,7 @@ def run():
             subaccount_owner=owner,
             subaccount_name="default",
         ),
-        priceX18=to_x18(55000),
+        priceX18=to_x18(order_price),
         amount=to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.POST_ONLY, int(time.time()) + 40),
         nonce=gen_order_nonce(),
@@ -134,7 +136,7 @@ def run():
             subaccount_owner=owner,
             subaccount_name="default",
         ),
-        priceX18=to_x18(55000),
+        priceX18=to_x18(order_price),
         amount=to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.POST_ONLY, int(time.time()) + 40),
         nonce=gen_order_nonce(),
@@ -158,7 +160,7 @@ def run():
             subaccount_owner=owner,
             subaccount_name="default",
         ),
-        priceX18=to_x18(65000),
+        priceX18=to_x18(order_price + 10_000),
         amount=-to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.POST_ONLY, int(time.time()) + 40),
         nonce=gen_order_nonce(),
@@ -180,7 +182,7 @@ def run():
             subaccount_owner=owner,
             subaccount_name="default",
         ),
-        priceX18=to_x18(55000),
+        priceX18=to_x18(order_price),
         amount=to_pow_10(1, 17),
         expiration=get_expiration_timestamp(OrderType.POST_ONLY, int(time.time()) + 60),
         nonce=gen_order_nonce(),
@@ -372,7 +374,14 @@ def run():
         ),
         productId=3,
         amount=to_x18(1),
-        nonce=client.context.engine_client.tx_nonce(),
+        nonce=client.context.engine_client.tx_nonce(
+            subaccount_to_hex(
+                SubaccountParams(
+                    subaccount_owner=client.context.engine_client.signer.address,
+                    subaccount_name="default",
+                )
+            )
+        ),
     )
     res = client.market.burn_lp(burn_lp_params)
     print("burn lp result:", res.json(indent=2))
diff --git a/vertex_protocol/engine_client/execute.py b/vertex_protocol/engine_client/execute.py
index 753c6f2..01f547a 100644
--- a/vertex_protocol/engine_client/execute.py
+++ b/vertex_protocol/engine_client/execute.py
@@ -99,17 +99,21 @@ def _inject_nonce_if_needed(
         """
         if params.nonce is not None:
             return params
-        params.nonce = self.order_nonce() if use_order_nonce else self.tx_nonce()
+        params.nonce = (
+            self.order_nonce()
+            if use_order_nonce
+            else self.tx_nonce(subaccount_to_hex(params.sender))
+        )
         return params
 
-    def tx_nonce(self) -> int:
+    def tx_nonce(self, sender: str) -> int:
         """
         Get the transaction nonce. Used to perform executes such as `withdraw_collateral`.
 
         Returns:
             int: The transaction nonce.
         """
-        return int(self._querier.get_nonces(self.signer.address).tx_nonce)
+        return int(self._querier.get_nonces(sender[:42]).tx_nonce)
 
     def order_nonce(self, recv_time_ms: Optional[int] = None) -> int:
         """