diff --git a/README.md b/README.md
index d013d0c7..b0934565 100644
--- a/README.md
+++ b/README.md
@@ -10,8 +10,8 @@ Filecoin metamask snap and related packages to enable developers to add Filecoin
 
 ## Examples
 
-- [`demo`](./packages/demo) - Preact demo dapp using [filsnap-adapter](./packages/filsnap-adapter) to interact with [filsnap](./packages/filsnap)
-- [`fil-forwarder-viem`](./packages/fil-forwarder-viem) - [Viem](https://viem.sh/) example to send FIL using FilForwarder contract.
+- [`demo`](./examples/demo) - Preact demo dapp using [filsnap-adapter](./packages/filsnap-adapter) to interact with [filsnap](./packages/filsnap)
+- [`fil-forwarder-viem`](./examples/fil-forwarder-viem) - [Viem](https://viem.sh/) example to send FIL using FilForwarder contract.
 
 ### Checkout examples
 
diff --git a/packages/snap/snap.manifest.json b/packages/snap/snap.manifest.json
index 63db4fd2..64fe3fce 100644
--- a/packages/snap/snap.manifest.json
+++ b/packages/snap/snap.manifest.json
@@ -7,7 +7,7 @@
     "url": "https://github.com/filecoin-project/filsnap.git"
   },
   "source": {
-    "shasum": "A3iZwXzHmYbIDCPkBJ4OfiEMabYvimV54XNeqtrstNU=",
+    "shasum": "PrxFxKiusGgxcttw9R6UenDIU4vxcM2CFCfrX70fMWM=",
     "location": {
       "npm": {
         "filePath": "dist/snap.js",
diff --git a/packages/snap/src/rpc/configure.ts b/packages/snap/src/rpc/configure.ts
index abae2932..01398523 100644
--- a/packages/snap/src/rpc/configure.ts
+++ b/packages/snap/src/rpc/configure.ts
@@ -75,5 +75,5 @@ export async function configure(
     method: 'snap_manageState',
     params: { newState: state, operation: 'update' },
   })
-  return { result: _params.data, error: undefined }
+  return { result: _params.data, error: null }
 }
diff --git a/packages/snap/src/rpc/export-private-key.ts b/packages/snap/src/rpc/export-private-key.ts
index 7acd4ee7..0fe3691c 100644
--- a/packages/snap/src/rpc/export-private-key.ts
+++ b/packages/snap/src/rpc/export-private-key.ts
@@ -27,7 +27,7 @@ export async function exportPrivateKey(
   if (conf) {
     return {
       result: base64pad.encode(ctx.account.privateKey),
-      error: undefined,
+      error: null,
     }
   }
   return serializeError('User denied private key export')
diff --git a/packages/snap/src/rpc/gas-for-message.ts b/packages/snap/src/rpc/gas-for-message.ts
index c047c9be..68047a7c 100644
--- a/packages/snap/src/rpc/gas-for-message.ts
+++ b/packages/snap/src/rpc/gas-for-message.ts
@@ -78,7 +78,7 @@ export async function getGasForMessage(
   }
 
   return {
-    error: undefined,
+    error: null,
     result: {
       gasFeeCap: result.GasFeeCap,
       gasLimit: result.GasLimit,
diff --git a/packages/snap/src/rpc/get-account.ts b/packages/snap/src/rpc/get-account.ts
index a52b37bc..69072d3b 100644
--- a/packages/snap/src/rpc/get-account.ts
+++ b/packages/snap/src/rpc/get-account.ts
@@ -18,7 +18,7 @@ export async function getAccountInfo(
     return serializeError('RPC call to "WalletBalance" failed', balance.error)
   }
   return {
-    error: undefined,
+    error: null,
     result: {
       address: ctx.account.address.toString(),
       pubKey: ctx.account.pubKey.toString(),
diff --git a/packages/snap/src/rpc/get-balance.ts b/packages/snap/src/rpc/get-balance.ts
index 291b4493..ab077384 100644
--- a/packages/snap/src/rpc/get-balance.ts
+++ b/packages/snap/src/rpc/get-balance.ts
@@ -21,5 +21,5 @@ export async function getBalance(
   if (balance.error != null) {
     return serializeError('RPC call to "WalletBalance" failed', balance.error)
   }
-  return balance
+  return { result: balance.result, error: null }
 }
diff --git a/packages/snap/src/rpc/get-messages.ts b/packages/snap/src/rpc/get-messages.ts
index 902e7b49..17ed0601 100644
--- a/packages/snap/src/rpc/get-messages.ts
+++ b/packages/snap/src/rpc/get-messages.ts
@@ -28,5 +28,5 @@ export async function getMessages(
     return serializeError(`Invalid messages in snap state`, state.error)
   }
 
-  return { result: state.data.filecoin.messages, error: undefined }
+  return { result: state.data.filecoin.messages, error: null }
 }
diff --git a/packages/snap/src/rpc/send-message.ts b/packages/snap/src/rpc/send-message.ts
index 5bb8ec50..3e36dc9b 100644
--- a/packages/snap/src/rpc/send-message.ts
+++ b/packages/snap/src/rpc/send-message.ts
@@ -37,5 +37,5 @@ export async function sendMessage(
     message: params.message,
   }
   await updateMessageInState(snap, messageStatus)
-  return { result: messageStatus, error: undefined }
+  return { result: messageStatus, error: null }
 }
diff --git a/packages/snap/src/rpc/sign-message.ts b/packages/snap/src/rpc/sign-message.ts
index 9348ec8b..06013f1e 100644
--- a/packages/snap/src/rpc/sign-message.ts
+++ b/packages/snap/src/rpc/sign-message.ts
@@ -90,7 +90,7 @@ export async function signMessage(
   if (conf) {
     const sig = filSignMessage(ctx.account.privateKey, 'SECP256K1', message)
     return {
-      error: undefined,
+      error: null,
       result: {
         message,
         signature: {
@@ -135,7 +135,7 @@ export async function signMessageRaw(
   if (conf) {
     const sig = sign(ctx.account.privateKey, 'SECP256K1', message)
     return {
-      error: undefined,
+      error: null,
       result: base64pad.encode(sig),
     }
   }
diff --git a/packages/snap/src/types.ts b/packages/snap/src/types.ts
index b734cba8..f1115c6f 100644
--- a/packages/snap/src/types.ts
+++ b/packages/snap/src/types.ts
@@ -62,7 +62,7 @@ export interface SnapError {
 
 export interface SnapResponseError {
   error: SnapError
-  result: undefined
+  result: null
 }
 
 /**
@@ -70,7 +70,7 @@ export interface SnapResponseError {
  */
 export type SnapResponse<R> =
   | {
-      error: undefined
+      error: null
       result: R
     }
   | SnapResponseError
diff --git a/packages/snap/src/utils.ts b/packages/snap/src/utils.ts
index b3a293a6..c12c44cd 100644
--- a/packages/snap/src/utils.ts
+++ b/packages/snap/src/utils.ts
@@ -110,7 +110,7 @@ export function serializeError(msg: string, data?: unknown): SnapResponseError {
   // @ts-expect-error - no types
   const _msg = (hasMessage ? _data.message : '') as string
   return {
-    result: undefined,
+    result: null,
     error: {
       message: msg + (hasMessage ? ` - ${_msg}` : ''),
       data: _data,
diff --git a/packages/snap/test/unit/rpc/export-seed.test.ts b/packages/snap/test/unit/rpc/export-seed.test.ts
index b069bb15..dfb7e60f 100644
--- a/packages/snap/test/unit/rpc/export-seed.test.ts
+++ b/packages/snap/test/unit/rpc/export-seed.test.ts
@@ -33,6 +33,6 @@ describe('Test rpc handler function: exportSeed', function () {
     const result = await exportPrivateKey({ snap: walletStub, account })
 
     expect(walletStub.rpcStubs.snap_dialog).to.have.been.calledOnce()
-    expect(result.result).to.be.undefined()
+    expect(result.result).to.be.null()
   })
 })
diff --git a/packages/snap/test/unit/rpc/get-balance.test.ts b/packages/snap/test/unit/rpc/get-balance.test.ts
index 4093a8cb..ff8a523d 100644
--- a/packages/snap/test/unit/rpc/get-balance.test.ts
+++ b/packages/snap/test/unit/rpc/get-balance.test.ts
@@ -17,13 +17,17 @@ describe('Test rpc handler function: getBalance', function () {
     // prepare stubs
     walletStub.prepareFoKeyPair()
     const account = await getKeyPair(walletStub)
-    rpcStub.balance.returns('30000000')
+    rpcStub.balance.returns({ result: '30000000' })
     // call getBalance
-    // @ts-expect-error - test code
-    const result = await getBalance({ snap: walletStub, rpc: rpcStub, account })
+    const balance = await getBalance({
+      snap: walletStub,
+      // @ts-expect-error - test code
+      rpc: rpcStub,
+      account,
+    })
     // assertions
     expect(walletStub.rpcStubs.snap_manageState).to.have.been.calledOnce()
     expect(walletStub.rpcStubs.snap_getBip44Entropy).to.have.been.calledOnce()
-    expect(result).to.be.eq('30000000')
+    expect(balance.result).to.be.eq('30000000')
   })
 })
diff --git a/packages/snap/test/unit/rpc/sign-message.test.ts b/packages/snap/test/unit/rpc/sign-message.test.ts
index 3f56c0c2..f5894d50 100644
--- a/packages/snap/test/unit/rpc/sign-message.test.ts
+++ b/packages/snap/test/unit/rpc/sign-message.test.ts
@@ -76,7 +76,7 @@ describe('Test rpc handler function: signMessage', function () {
     expect(apiStub.gasEstimate).to.have.been.calledOnce()
 
     expect(response).to.containSubset({
-      error: undefined,
+      error: null,
       result: {
         message: fullMessage,
         signature: {
@@ -127,7 +127,7 @@ describe('Test rpc handler function: signMessage', function () {
     expect(apiStub.nonce).to.have.not.been.called()
 
     expect(response).to.containSubset({
-      error: undefined,
+      error: null,
       result: {
         message: {
           ...fullMessage,
@@ -178,7 +178,7 @@ describe('Test rpc handler function: signMessage', function () {
     expect(apiStub.gasEstimate).to.have.been.calledOnce()
 
     expect(response).to.containSubset({
-      error: undefined,
+      error: null,
       result: {
         message: paramsMessage,
         signature: {
@@ -223,7 +223,7 @@ describe('Test rpc handler function: signMessage', function () {
       error: {
         message: 'User denied message signing',
       },
-      result: undefined,
+      result: null,
     })
   })
 
@@ -243,7 +243,7 @@ describe('Test rpc handler function: signMessage', function () {
       invalidMessage
     )
 
-    expect(result).to.be.undefined()
+    expect(result).to.be.null()
     expect(error).to.not.be.null()
   })
 })