diff --git a/src/marketplace/marketplace.test.ts b/src/marketplace/marketplace.test.ts
index f84a395..0b99bfa 100644
--- a/src/marketplace/marketplace.test.ts
+++ b/src/marketplace/marketplace.test.ts
@@ -17,7 +17,7 @@ function createStorageRequest() {
     nodes: randomInt(1, 5),
     tolerance: randomInt(1, 100),
     expiry: randomInt(1, 100),
-    collateral: randomInt(1, 100),
+    collateralPerByte: randomInt(1, 100),
   };
 }
 
@@ -366,14 +366,14 @@ describe("marketplace", () => {
     assert.deepStrictEqual(response, minNumberValidationError("expiry", 1));
   });
 
-  it("returns an error when trying to create a storage request without collateral", async () => {
-    const { collateral, ...rest } = createStorageRequest();
+  it("returns an error when trying to create a storage request without collateralPerByte", async () => {
+    const { collateralPerByte, ...rest } = createStorageRequest();
 
     const response = await marketplace.createStorageRequest(rest as any);
 
     assert.deepStrictEqual(
       response,
-      missingNumberValidationError("collateral")
+      missingNumberValidationError("collateralPerByte")
     );
   });
 });
diff --git a/src/marketplace/marketplace.ts b/src/marketplace/marketplace.ts
index 0f55c25..cdf2be3 100644
--- a/src/marketplace/marketplace.ts
+++ b/src/marketplace/marketplace.ts
@@ -239,7 +239,7 @@ export class CodexMarketplace {
       pricePerBytePerSecond,
       proofProbability,
       nodes,
-      collateral,
+      collateralPerByte,
       expiry,
       tolerance,
     } = result.output;
@@ -252,7 +252,7 @@ export class CodexMarketplace {
         pricePerBytePerSecond: pricePerBytePerSecond.toString(),
         proofProbability: proofProbability.toString(),
         nodes,
-        collateral: collateral.toString(),
+        collateral: collateralPerByte.toString(),
         expiry: expiry.toString(),
         tolerance,
       }),
diff --git a/src/marketplace/types.ts b/src/marketplace/types.ts
index 503a09f..1fb058c 100644
--- a/src/marketplace/types.ts
+++ b/src/marketplace/types.ts
@@ -219,7 +219,7 @@ export const CodexCreateStorageRequestInput = v.strictObject({
   nodes: v.optional(v.number(), 1),
   tolerance: v.optional(v.number(), 0),
   expiry: v.pipe(v.number(), v.minValue(1)),
-  collateral: v.number(),
+  collateralPerByte: v.number(),
 });
 
 export type CodexCreateStorageRequestInput = v.InferOutput<