diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4047ca52..f8bf7720 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        node: ['18', '20']
+        node: ["18", "20"]
 
     runs-on: ${{ matrix.os }}
 
@@ -35,3 +35,9 @@ jobs:
       - name: Run tests
         run: |
           npm t
+
+      - name: Upload coverage results to Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          path-to-lcov: ./test/coverage/lcov.info
diff --git a/package.json b/package.json
index 62a149e9..acfc9597 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "build:module": "tsc -p tsconfig.module.json",
     "lint": "eslint ./src/**/* test/**/*.test.ts",
     "test": "run-s test:clean test:infra test:suite test:clean",
-    "test:suite": "jest --runInBand",
+    "test:suite": "jest --runInBand --coverage",
     "test:infra": "cd infra && docker compose down && docker compose pull && docker compose up -d && sleep 30",
     "test:clean": "cd infra && docker compose down",
     "docs": "typedoc src/index.ts --out docs/v2 --excludePrivate --excludeProtected",
diff --git a/src/lib/helpers.ts b/src/lib/helpers.ts
index d940d1b4..dee69fea 100644
--- a/src/lib/helpers.ts
+++ b/src/lib/helpers.ts
@@ -14,8 +14,7 @@ export function uuid() {
   })
 }
 
-export const isBrowser = () =>
-  typeof window !== 'undefined' && typeof document !== 'undefined'
+export const isBrowser = () => typeof window !== 'undefined' && typeof document !== 'undefined'
 
 const localStorageWriteTests = {
   tested: false,