diff --git a/.eslintrc.js b/.eslintrc.cjs
similarity index 100%
rename from .eslintrc.js
rename to .eslintrc.cjs
diff --git a/package.json b/package.json
index d16ba705a6..4d6cbc820a 100644
--- a/package.json
+++ b/package.json
@@ -9,8 +9,8 @@
     "type": "git",
     "url": "https://github.com/polkadot-js/api.git"
   },
+  "type": "module",
   "sideEffects": false,
-  "type": "commonjs",
   "version": "8.11.4-13-x",
   "workspaces": [
     "packages/*"
@@ -27,8 +27,7 @@
     "lint": "polkadot-dev-run-lint",
     "postinstall": "polkadot-dev-yarn-only",
     "test": "NODE_OPTIONS=--experimental-vm-modules polkadot-dev-run-test --coverage --forceExit --runInBand --testPathIgnorePatterns e2e",
-    "test:one": "polkadot-dev-run-test --detectOpenHandles --forceExit",
-    "test:watch": "polkadot-dev-run-test --watch"
+    "test:one": "NODE_OPTIONS=--experimental-vm-modules polkadot-dev-run-test --detectOpenHandles --forceExit"
   },
   "devDependencies": {
     "@babel/core": "^7.18.6",
diff --git a/packages/rpc-provider/src/substrate-connect/ScProvider.spec.ts b/packages/rpc-provider/src/substrate-connect/ScProvider.spec.ts
index 1deea9aba9..45cfa78bb0 100644
--- a/packages/rpc-provider/src/substrate-connect/ScProvider.spec.ts
+++ b/packages/rpc-provider/src/substrate-connect/ScProvider.spec.ts
@@ -74,7 +74,7 @@ const healthCheckerFactory = () => {
   };
 };
 
-// jest.mock('./Health', () => healthCheckerFactory());
+jest.mock('./Health', () => healthCheckerFactory());
 
 type MockChain = Chain & {
   _spec: () => string
@@ -202,7 +202,7 @@ beforeAll(async () => {
   mockedConnector = (await import(
     '@substrate/connect'
   )) as unknown as ReturnType<typeof connectorFactory>;
-  mockedHealthChecker = healthCheckerFactory();
+  mockedHealthChecker = healthCheckerFactory(); // await import('./Health')
 });
 
 describe('ScProvider', () => {