diff --git a/package-lock.json b/package-lock.json
index 52dd706..6c6e969 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.19.92-rc0",
+  "version": "0.19.92-rc1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@orionprotocol/sdk",
-      "version": "0.19.92-rc0",
+      "version": "0.19.92-rc1",
       "hasInstallScript": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index a99395b..0a22621 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.19.92-rc0",
+  "version": "0.19.92-rc1",
   "description": "Orion Protocol SDK",
   "main": "./lib/index.cjs",
   "module": "./lib/index.js",
diff --git a/src/Unit/Exchange/generateSwapCalldata.ts b/src/Unit/Exchange/generateSwapCalldata.ts
index 1664a03..76e9fe3 100644
--- a/src/Unit/Exchange/generateSwapCalldata.ts
+++ b/src/Unit/Exchange/generateSwapCalldata.ts
@@ -45,8 +45,8 @@ export default async function generateSwapCalldata({
   const curveRegistryAddress = safeGet(unit.contracts, 'curveRegistry')
   const { assetToAddress, swapExecutorContractAddress, exchangeContractAddress } = await simpleFetch(unit.blockchainService.getInfo)();
   let path = SafeArray.from(path_).map((swapInfo) => {
-    swapInfo.assetIn = safeGet(assetToAddress, swapInfo.assetIn);
-    swapInfo.assetOut = safeGet(assetToAddress, swapInfo.assetOut);
+    swapInfo.assetIn = assetToAddress[swapInfo.assetIn] ?? swapInfo.assetIn.toLowerCase();
+    swapInfo.assetOut = assetToAddress[swapInfo.assetOut] ?? swapInfo.assetOut.toLowerCase();
     return swapInfo;
   })
   const factory = path.first().factory
diff --git a/src/services/BlockchainService/index.ts b/src/services/BlockchainService/index.ts
index 8ac862e..6c43a0a 100644
--- a/src/services/BlockchainService/index.ts
+++ b/src/services/BlockchainService/index.ts
@@ -59,6 +59,13 @@ type AtomicSwapHistoryTargetQuery = AtomicSwapHistoryBaseQuery & {
   expiredRedeem?: 0 | 1
   state?: 'REDEEMED' | 'BEFORE-REDEEM'
 }
+
+type PlatformFees = {
+  assetIn: string
+  assetOut: string
+  walletAddress?: string | undefined
+  fromWidget?: string | undefined
+}
 class BlockchainService {
   private readonly apiUrl: string;
 
@@ -231,23 +238,17 @@ class BlockchainService {
     { headers: this.basicAuthHeaders }
   );
 
-  getPlatformFees = (
-    { assetIn, assetOut, walletAddress, fromWidget }: {
-      assetIn?: string | undefined,
-      assetOut?: string | undefined,
-      walletAddress?: string | undefined,
-      fromWidget?: string | undefined
-    }
+  getPlatformFees = ({
+    assetIn,
+    assetOut,
+    walletAddress,
+    fromWidget
+  }: PlatformFees
   ) => {
     const url = new URL(`${this.apiUrl}/api/platform-fees`);
 
-    if (assetIn !== undefined) {
-      url.searchParams.append('assetIn', assetIn);
-    }
-
-    if (assetOut !== undefined) {
-      url.searchParams.append('assetOut', assetOut);
-    }
+    url.searchParams.append('assetIn', assetIn);
+    url.searchParams.append('assetOut', assetOut);
 
     if (walletAddress !== undefined) {
       url.searchParams.append('walletAddress', walletAddress);