diff --git a/sdks/uniswapx-sdk/src/constants.test.ts b/sdks/uniswapx-sdk/src/constants.test.ts
index 4fb7dbd56..3114c997e 100644
--- a/sdks/uniswapx-sdk/src/constants.test.ts
+++ b/sdks/uniswapx-sdk/src/constants.test.ts
@@ -13,33 +13,27 @@ describe("REACTOR_ADDRESS_MAPPING", () => {
         "11155111": Object {
           "Dutch": "0xD6c073F2A3b676B8f9002b276B618e0d8bA84Fad",
           "Dutch_V2": "0x0e22B6638161A89533940Db590E67A52474bEBcd",
-          "Relay": "0x0000000000A4e21E2597DCac987455c48b12edBF",
         },
         "12341234": Object {
           "Dutch": "0xbD7F9D0239f81C94b728d827a87b9864972661eC",
           "Dutch_V2": "0x0000000000000000000000000000000000000000",
-          "Relay": "0x0000000000A4e21E2597DCac987455c48b12edBF",
         },
         "137": Object {
           "Dutch": "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
           "Dutch_V2": "0x0000000000000000000000000000000000000000",
-          "Relay": "0x0000000000A4e21E2597DCac987455c48b12edBF",
         },
         "42161": Object {
           "Dutch": "0x0000000000000000000000000000000000000000",
           "Dutch_V2": "0x1bd1aAdc9E230626C44a139d7E70d842749351eb",
-          "Relay": "0x0000000000000000000000000000000000000000",
         },
         "5": Object {
           "Dutch": "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
           "Dutch_V2": "0x0000000000000000000000000000000000000000",
-          "Relay": "0x0000000000A4e21E2597DCac987455c48b12edBF",
         },
         "8453": Object {
           "Dutch": "0x0000000000000000000000000000000000000000",
           "Dutch_V2": "0x0000000000000000000000000000000000000000",
-          "Priority": "0x0000000000000000000000000000000000000000",
-          "Relay": "0x0000000000000000000000000000000000000000",
+          "Priority": "0x000000001Ec5656dcdB24D90DFa42742738De729",
         },
       }
     `);
diff --git a/sdks/uniswapx-sdk/src/constants.ts b/sdks/uniswapx-sdk/src/constants.ts
index a2b8e6e82..c22138eb3 100644
--- a/sdks/uniswapx-sdk/src/constants.ts
+++ b/sdks/uniswapx-sdk/src/constants.ts
@@ -23,11 +23,11 @@ export function constructSameAddressMap<T>(
 }
 
 export const PERMIT2_MAPPING: AddressMap = {
-  ...constructSameAddressMap("0x000000000022d473030f116ddee9f6b43ac78ba3"),
-  11155111: "0x000000000022d473030f116ddee9f6b43ac78ba3",
-  42161: "0x000000000022d473030f116ddee9f6b43ac78ba3",
+  ...constructSameAddressMap("0x000000000022d473030f116ddee9f6b43ac78ba3", [
+    11155111,
+    42161,
+  ]),
   12341234: "0x000000000022d473030f116ddee9f6b43ac78ba3",
-  8453: "0x000000000022d473030f116ddee9f6b43ac78ba3",
 };
 
 export const UNISWAPX_ORDER_QUOTER_MAPPING: AddressMap = {
@@ -35,6 +35,7 @@ export const UNISWAPX_ORDER_QUOTER_MAPPING: AddressMap = {
   11155111: "0xAA6187C48096e093c37d2cF178B1e8534A6934f7",
   42161: "0x88440407634F89873c5D9439987Ac4BE9725fea8",
   12341234: "0xbea0901A41177811b099F787D753436b2c47690E",
+  8453: "0x88440407634f89873c5d9439987ac4be9725fea8",
 };
 
 export const EXCLUSIVE_FILLER_VALIDATION_MAPPING: AddressMap = {
@@ -70,7 +71,6 @@ export const REACTOR_ADDRESS_MAPPING: ReactorMapping = {
   ...constructSameAddressMap({
     [OrderType.Dutch]: "0x6000da47483062A0D734Ba3dc7576Ce6A0B645C4",
     [OrderType.Dutch_V2]: "0x0000000000000000000000000000000000000000",
-    [OrderType.Relay]: "0x0000000000A4e21E2597DCac987455c48b12edBF",
   }),
   //test contract is only on mainnet
   1: {
@@ -82,23 +82,19 @@ export const REACTOR_ADDRESS_MAPPING: ReactorMapping = {
   12341234: {
     [OrderType.Dutch]: "0xbD7F9D0239f81C94b728d827a87b9864972661eC",
     [OrderType.Dutch_V2]: "0x0000000000000000000000000000000000000000",
-    [OrderType.Relay]: "0x0000000000A4e21E2597DCac987455c48b12edBF",
   },
   11155111: {
     [OrderType.Dutch_V2]: "0x0e22B6638161A89533940Db590E67A52474bEBcd",
     [OrderType.Dutch]: "0xD6c073F2A3b676B8f9002b276B618e0d8bA84Fad",
-    [OrderType.Relay]: "0x0000000000A4e21E2597DCac987455c48b12edBF",
   },
   42161: {
     [OrderType.Dutch_V2]: "0x1bd1aAdc9E230626C44a139d7E70d842749351eb",
     [OrderType.Dutch]: "0x0000000000000000000000000000000000000000",
-    [OrderType.Relay]: "0x0000000000000000000000000000000000000000",
   },
   8453: {
     [OrderType.Dutch]: "0x0000000000000000000000000000000000000000",
     [OrderType.Dutch_V2]: "0x0000000000000000000000000000000000000000",
-    [OrderType.Relay]: "0x0000000000000000000000000000000000000000",
-    [OrderType.Priority]: "0x0000000000000000000000000000000000000000",
+    [OrderType.Priority]: "0x000000001Ec5656dcdB24D90DFa42742738De729",
   },
 };