diff --git a/.changeset/lazy-buttons-fly.md b/.changeset/lazy-buttons-fly.md
new file mode 100644
index 0000000..7de3e48
--- /dev/null
+++ b/.changeset/lazy-buttons-fly.md
@@ -0,0 +1,5 @@
+---
+"@open-frames/proxy": patch
+---
+
+type fixes
diff --git a/packages/server/src/handlers.ts b/packages/server/src/handlers.ts
index 27bdc9e..293e28e 100644
--- a/packages/server/src/handlers.ts
+++ b/packages/server/src/handlers.ts
@@ -150,7 +150,8 @@ export async function postTransaction(url: string, body: unknown) {
 		throw new Error(`Request failed with status ${response.status}`);
 	}
 
-	const validatedTransactionResponse = parseAndValidateTransactionResponse(response.json());
+	const responseData: TransactionResponse = (await response.json()) as TransactionResponse;
+	const validatedTransactionResponse = parseAndValidateTransactionResponse(responseData);
 	if (!validatedTransactionResponse) {
 		throw new Error(`Invalid transaction response from ${url}`);
 	} else {
diff --git a/packages/server/src/parser.test.ts b/packages/server/src/parser.test.ts
index 49a3c94..01817dd 100644
--- a/packages/server/src/parser.test.ts
+++ b/packages/server/src/parser.test.ts
@@ -1,6 +1,7 @@
 import { readFile } from 'node:fs/promises';
 import { createServer, Server } from 'node:http';
 
+import { TransactionResponse } from '@open-frames/proxy-types';
 import { afterAll, beforeAll, describe, expect, test } from 'vitest';
 
 import { downloadAndExtract } from './handlers.js';
@@ -262,7 +263,7 @@ describe('parseAndValidateTransactionResponse', () => {
 				value: '1000',
 				data: '0x00',
 			},
-		};
+		} as TransactionResponse;
 		expect(parseAndValidateTransactionResponse(validInput)).toEqual(validInput);
 	});
 
@@ -276,7 +277,7 @@ describe('parseAndValidateTransactionResponse', () => {
 				value: '1000',
 				data: '0x00',
 			},
-		};
+		} as unknown as TransactionResponse;
 		expect(parseAndValidateTransactionResponse(validInput)).toEqual(validInput);
 	});
 
@@ -287,7 +288,7 @@ describe('parseAndValidateTransactionResponse', () => {
 			params: {
 				abi: 'invalid abi',
 			},
-		};
+		} as unknown as TransactionResponse;
 		expect(parseAndValidateTransactionResponse(invalidChainId)).toBeNull();
 	});
 	test('should return null when input method is eth_sendTransaction with invalid chainId', () => {
@@ -300,7 +301,7 @@ describe('parseAndValidateTransactionResponse', () => {
 				value: '1000',
 				data: '0x00',
 			},
-		};
+		} as TransactionResponse;
 		expect(parseAndValidateTransactionResponse(invalidChainId)).toBeNull();
 	});
 });