diff --git a/package-lock.json b/package-lock.json
index 9aafb9bf..2be4537c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,6 @@
         "elliptic": "6.5.6",
         "hash.js": "^1.1.7",
         "js-sha3": "^0.9.3",
-        "rlp": "^3.0.0",
         "secp256k1": "5.0.0",
         "uuid": "^10.0.0"
       },
@@ -6519,14 +6518,6 @@
         "inherits": "^2.0.1"
       }
     },
-    "node_modules/rlp": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/rlp/-/rlp-3.0.0.tgz",
-      "integrity": "sha512-PD6U2PGk6Vq2spfgiWZdomLvRGDreBLxi5jv5M8EpRo3pU6VEm31KO+HFxE18Q3vgqfDrQ9pZA3FP95rkijNKw==",
-      "bin": {
-        "rlp": "bin/rlp"
-      }
-    },
     "node_modules/rollup": {
       "version": "2.79.1",
       "resolved": "https://registry.npmjs.org/rollup/-/rollup-2.79.1.tgz",
diff --git a/src/__test__/integration/__mocks__/handlers.ts b/src/__test__/integration/__mocks__/handlers.ts
index d390ae9d..88258130 100644
--- a/src/__test__/integration/__mocks__/handlers.ts
+++ b/src/__test__/integration/__mocks__/handlers.ts
@@ -1,4 +1,4 @@
-import { rest } from 'msw';
+import { http, HttpResponse } from 'msw';
 import connectResponse from './connect.json';
 import getAddressesResponse from './getAddresses.json';
 import signResponse from './sign.json';
@@ -22,80 +22,78 @@ import {
 } from './4byte';
 
 export const handlers = [
-  rest.post('https://signing.gridpl.us/test/connect', (req, res, ctx) => {
-    return res(ctx.json(connectResponse));
+  http.post('https://signing.gridpl.us/test/connect', () => {
+    return HttpResponse.json(connectResponse);
   }),
-  rest.post('https://signing.gridpl.us/test/getAddresses', (req, res, ctx) => {
-    return res(ctx.json(getAddressesResponse));
+  http.post('https://signing.gridpl.us/test/getAddresses', () => {
+    return HttpResponse.json(getAddressesResponse);
   }),
-  rest.post('https://signing.gridpl.us/test/sign', (req, res, ctx) => {
-    return res(ctx.json(signResponse));
+  http.post('https://signing.gridpl.us/test/sign', () => {
+    return HttpResponse.json(signResponse);
   }),
-  rest.post(
-    'https://signing.gridpl.us/test/fetchActiveWallet',
-    (req, res, ctx) => {
-      return res(ctx.json(fetchActiveWalletResponse));
-    },
-  ),
-  rest.post('https://signing.gridpl.us/test/addKvRecords', (req, res, ctx) => {
-    return res(ctx.json(addKvRecordsResponse));
+  http.post('https://signing.gridpl.us/test/fetchActiveWallet', () => {
+    return HttpResponse.json(fetchActiveWalletResponse);
   }),
-  rest.post('https://signing.gridpl.us/test/getKvRecords', (req, res, ctx) => {
-    return res(ctx.json(getKvRecordsResponse));
+  http.post('https://signing.gridpl.us/test/addKvRecords', () => {
+    return HttpResponse.json(addKvRecordsResponse);
   }),
-  rest.post(
-    'https://signing.gridpl.us/test/removeKvRecords',
-    (req, res, ctx) => {
-      return res(ctx.json(removeKvRecordsResponse));
-    },
-  ),
-  rest.get('https://api.etherscan.io/api', (req, res, ctx) => {
-    const module = req.url.searchParams.get('module');
-    const action = req.url.searchParams.get('action');
-    const address = req.url.searchParams.get('address');
+  http.post('https://signing.gridpl.us/test/getKvRecords', () => {
+    return HttpResponse.json(getKvRecordsResponse);
+  }),
+  http.post('https://signing.gridpl.us/test/removeKvRecords', () => {
+    return HttpResponse.json(removeKvRecordsResponse);
+  }),
+  http.get('https://api.etherscan.io/api', ({ request }) => {
+    const url = new URL(request.url);
+    const module = url.searchParams.get('module');
+    const action = url.searchParams.get('action');
+    const address = url.searchParams.get('address');
 
     if (module === 'contract' && action === 'getabi') {
       if (address === '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48') {
-        return res(
-          ctx.json({ result: JSON.stringify(etherscanResponse0xa0b86991) }),
-        );
+        return HttpResponse.json({
+          result: JSON.stringify(etherscanResponse0xa0b86991),
+        });
       }
       if (address === '0x7a250d5630b4cf539739df2c5dacb4c659f2488d') {
-        return res(
-          ctx.json({ result: JSON.stringify(etherscanResponse0x7a250d56) }),
-        );
+        return HttpResponse.json({
+          result: JSON.stringify(etherscanResponse0x7a250d56),
+        });
       }
       if (address === '0xc36442b4a4522e871399cd717abdd847ab11fe88') {
-        return res(
-          ctx.json({ result: JSON.stringify(etherscanResponse0xc36442b6) }),
-        );
+        return HttpResponse.json({
+          result: JSON.stringify(etherscanResponse0xc36442b6),
+        });
       }
       if (address === '0x06412d7ebfbf66c25607e2ed24c1d207043be327') {
-        return res(
-          ctx.json({ result: JSON.stringify(etherscanResponse0x06412d7e) }),
-        );
+        return HttpResponse.json({
+          result: JSON.stringify(etherscanResponse0x06412d7e),
+        });
       }
     }
+    return new HttpResponse(null, { status: 404 });
   }),
-  rest.get('https://www.4byte.directory/api/v1/signatures', (req, res, ctx) => {
-    const hexSignature = req.url.searchParams.get('hex_signature');
+  http.get('https://www.4byte.directory/api/v1/signatures', ({ request }) => {
+    const url = new URL(request.url);
+    const hexSignature = url.searchParams.get('hex_signature');
     if (hexSignature === '0xa9059cbb') {
-      return res(ctx.json(fourbyteResponse0xa9059cbb));
+      return HttpResponse.json(fourbyteResponse0xa9059cbb);
     }
     if (hexSignature === '0x38ed1739') {
-      return res(ctx.json(fourbyteResponse0x38ed1739));
+      return HttpResponse.json(fourbyteResponse0x38ed1739);
     }
     if (hexSignature === '0xac9650d8') {
-      return res(ctx.json(fourbyteResponseac9650d8));
+      return HttpResponse.json(fourbyteResponseac9650d8);
     }
     if (hexSignature === '0x0c49ccbe') {
-      return res(ctx.json(fourbyteResponse0c49ccbe));
+      return HttpResponse.json(fourbyteResponse0c49ccbe);
     }
     if (hexSignature === '0xfc6f7865') {
-      return res(ctx.json(fourbyteResponsefc6f7865));
+      return HttpResponse.json(fourbyteResponsefc6f7865);
     }
     if (hexSignature === '0x6a761202') {
-      return res(ctx.json(fourbyteResponse0x6a761202));
+      return HttpResponse.json(fourbyteResponse0x6a761202);
     }
+    return new HttpResponse(null, { status: 404 });
   }),
 ];