diff --git a/src/fixtures.ts b/src/fixtures.ts
index 560c098..40d2aae 100644
--- a/src/fixtures.ts
+++ b/src/fixtures.ts
@@ -39,6 +39,8 @@ export const aPrice = (): Price => ({
   chainId: constants.StarknetChainId.SN_GOERLI,
   sourceName: 'AMM1',
   priceRatioUsd: 0,
+  gasFees: BigInt(0),
+  gasFeesInUsd: 0,
 });
 
 export const aQuote = (): Quote => ({
diff --git a/src/services.spec.ts b/src/services.spec.ts
index ffc1c99..1453afd 100644
--- a/src/services.spec.ts
+++ b/src/services.spec.ts
@@ -42,6 +42,7 @@ describe('Avnu services', () => {
           ...aPrice(),
           sellAmount: toBeHex(parseUnits('1', 18)),
           buyAmount: toBeHex(parseUnits('2', 18)),
+          gasFees: '0x0',
         },
       ];
       const queryParams = { ...aPriceRequest(), sellAmount: '0x0de0b6b3a7640000' };
@@ -64,6 +65,7 @@ describe('Avnu services', () => {
           ...aPrice(),
           sellAmount: toBeHex(parseUnits('1', 18)),
           buyAmount: toBeHex(parseUnits('2', 18)),
+          gasFees: '0x0',
         },
       ];
       const queryParams = { ...aPriceRequest(), sellAmount: '0x0de0b6b3a7640000' };
diff --git a/src/services.ts b/src/services.ts
index 557b7e7..ba92342 100644
--- a/src/services.ts
+++ b/src/services.ts
@@ -63,7 +63,12 @@ const fetchPrices = (request: PriceRequest, options?: AvnuOptions): Promise<Pric
   })
     .then((response) => parseResponse<Price[]>(response, options?.avnuPublicKey))
     .then((prices) =>
-      prices.map((price) => ({ ...price, sellAmount: BigInt(price.sellAmount), buyAmount: BigInt(price.buyAmount) })),
+      prices.map((price) => ({
+        ...price,
+        sellAmount: BigInt(price.sellAmount),
+        buyAmount: BigInt(price.buyAmount),
+        gasFees: BigInt(price.gasFees),
+      })),
     );
 };
 
diff --git a/src/types.ts b/src/types.ts
index 375c9a4..459cf9f 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -74,6 +74,8 @@ export interface Price {
   chainId: string;
   sourceName: string;
   priceRatioUsd: number;
+  gasFees: bigint;
+  gasFeesInUsd: number;
 }
 
 export interface Quote {